./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/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_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/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_5861759a-bbfe-4750-800f-8002b2d60926/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 ceaa95778492e3bc285d343b26b58125dae05b4d97d6b8fbdf100b65fa491c48 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:27:30,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:27:30,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:27:30,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:27:30,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:27:30,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:27:30,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:27:30,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:27:30,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:27:30,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:27:30,634 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:27:30,634 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:27:30,635 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:27:30,635 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:27:30,636 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:27:30,636 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:27:30,637 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:27:30,637 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:27:30,637 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:27:30,638 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:27:30,639 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:27:30,643 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:27:30,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:27:30,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:27:30,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:27:30,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:27:30,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:27:30,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:27:30,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:27:30,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:27:30,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:27:30,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:27:30,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:27:30,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:27:30,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:27:30,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:27:30,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:27:30,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:27:30,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:27:30,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:27:30,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:27:30,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:27:30,653 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:27:30,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:27:30,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:27:30,654 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:27:30,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:27:30,654 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_5861759a-bbfe-4750-800f-8002b2d60926/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceaa95778492e3bc285d343b26b58125dae05b4d97d6b8fbdf100b65fa491c48 [2024-11-09 05:27:31,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:27:31,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:27:31,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:27:31,124 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:27:31,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:27:31,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec11_product03.cil.c Unable to find full path for "g++" [2024-11-09 05:27:33,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:27:33,974 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:27:33,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/sv-benchmarks/c/product-lines/email_spec11_product03.cil.c [2024-11-09 05:27:34,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/data/76b8f9c16/d12f4b40946648b6a7df02b0f77f2d30/FLAGe25c1c66c [2024-11-09 05:27:34,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/data/76b8f9c16/d12f4b40946648b6a7df02b0f77f2d30 [2024-11-09 05:27:34,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:27:34,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:27:34,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:27:34,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:27:34,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:27:34,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:27:34" (1/1) ... [2024-11-09 05:27:34,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112fdb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:34, skipping insertion in model container [2024-11-09 05:27:34,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:27:34" (1/1) ... [2024-11-09 05:27:34,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:27:34,883 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_5861759a-bbfe-4750-800f-8002b2d60926/sv-benchmarks/c/product-lines/email_spec11_product03.cil.c[19915,19928] [2024-11-09 05:27:35,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:27:35,187 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:27:35,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-09 05:27:35,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [202] [2024-11-09 05:27:35,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [394] [2024-11-09 05:27:35,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [429] [2024-11-09 05:27:35,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [841] [2024-11-09 05:27:35,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1003] [2024-11-09 05:27:35,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1024] [2024-11-09 05:27:35,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1033] [2024-11-09 05:27:35,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1050] [2024-11-09 05:27:35,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1416] [2024-11-09 05:27:35,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2491] [2024-11-09 05:27:35,256 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_5861759a-bbfe-4750-800f-8002b2d60926/sv-benchmarks/c/product-lines/email_spec11_product03.cil.c[19915,19928] [2024-11-09 05:27:35,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:27:35,438 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:27:35,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35 WrapperNode [2024-11-09 05:27:35,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:27:35,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:27:35,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:27:35,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:27:35,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,570 INFO L138 Inliner]: procedures = 107, calls = 113, calls flagged for inlining = 35, calls inlined = 27, statements flattened = 525 [2024-11-09 05:27:35,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:27:35,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:27:35,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:27:35,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:27:35,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:27:35,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:27:35,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:27:35,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:27:35,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (1/1) ... [2024-11-09 05:27:35,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:27:35,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:35,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:27:35,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:27:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 05:27:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 05:27:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 05:27:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 05:27:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 05:27:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 05:27:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 05:27:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 05:27:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 05:27:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 05:27:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:27:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 05:27:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 05:27:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 05:27:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 05:27:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 05:27:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 05:27:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:27:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:27:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:27:36,039 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:27:36,042 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:27:36,755 INFO L? ?]: Removed 153 outVars from TransFormulas that were not future-live. [2024-11-09 05:27:36,755 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:27:37,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:27:37,010 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:27:37,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:27:37 BoogieIcfgContainer [2024-11-09 05:27:37,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:27:37,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:27:37,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:27:37,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:27:37,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:27:34" (1/3) ... [2024-11-09 05:27:37,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f21c543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:27:37, skipping insertion in model container [2024-11-09 05:27:37,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:35" (2/3) ... [2024-11-09 05:27:37,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f21c543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:27:37, skipping insertion in model container [2024-11-09 05:27:37,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:27:37" (3/3) ... [2024-11-09 05:27:37,027 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2024-11-09 05:27:37,049 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:27:37,049 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:27:37,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:27:37,146 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;@2ee350a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:27:37,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:27:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 54 states have (on average 1.537037037037037) internal successors, (83), 56 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:27:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:27:37,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:37,168 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:27:37,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:37,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:37,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1961715322, now seen corresponding path program 1 times [2024-11-09 05:27:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:37,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319837294] [2024-11-09 05:27:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:37,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:27:37,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319837294] [2024-11-09 05:27:37,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319837294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:37,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:27:37,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:27:37,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598502689] [2024-11-09 05:27:37,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:37,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:27:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:37,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:27:37,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:27:37,832 INFO L87 Difference]: Start difference. First operand has 77 states, 54 states have (on average 1.537037037037037) internal successors, (83), 56 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:27:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:37,957 INFO L93 Difference]: Finished difference Result 120 states and 160 transitions. [2024-11-09 05:27:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:27:37,960 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2024-11-09 05:27:37,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:37,971 INFO L225 Difference]: With dead ends: 120 [2024-11-09 05:27:37,972 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 05:27:37,976 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 05:27:37,982 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:37,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:27:38,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 05:27:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-09 05:27:38,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:27:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-09 05:27:38,056 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 42 [2024-11-09 05:27:38,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:38,060 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-09 05:27:38,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:27:38,061 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-09 05:27:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 05:27:38,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:38,066 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:27:38,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:27:38,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:38,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1120144850, now seen corresponding path program 1 times [2024-11-09 05:27:38,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:38,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459569465] [2024-11-09 05:27:38,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:38,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:27:38,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:38,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459569465] [2024-11-09 05:27:38,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459569465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:38,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:27:38,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:27:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456854323] [2024-11-09 05:27:38,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:38,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:27:38,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:38,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:27:38,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:27:38,364 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:27:38,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:38,458 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2024-11-09 05:27:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:27:38,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2024-11-09 05:27:38,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:38,461 INFO L225 Difference]: With dead ends: 116 [2024-11-09 05:27:38,461 INFO L226 Difference]: Without dead ends: 76 [2024-11-09 05:27:38,462 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 05:27:38,464 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:38,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:27:38,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-09 05:27:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-09 05:27:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:27:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2024-11-09 05:27:38,479 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 43 [2024-11-09 05:27:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:38,480 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-11-09 05:27:38,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:27:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2024-11-09 05:27:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:27:38,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:38,483 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:27:38,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:27:38,484 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:38,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1754478494, now seen corresponding path program 1 times [2024-11-09 05:27:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:38,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22878198] [2024-11-09 05:27:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:38,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:27:38,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:38,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22878198] [2024-11-09 05:27:38,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22878198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:27:38,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158050539] [2024-11-09 05:27:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:38,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:38,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:38,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:27:38,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:27:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:39,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:27:39,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:27:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:27:39,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:27:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:27:39,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158050539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:27:39,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [799094400] [2024-11-09 05:27:39,415 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 05:27:39,415 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:27:39,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:27:39,431 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:27:39,432 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:27:57,247 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:27:57,554 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:28:34,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [799094400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:34,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:28:34,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2024-11-09 05:28:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244433847] [2024-11-09 05:28:34,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:34,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:28:34,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:34,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:28:34,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:28:34,218 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 14 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:28:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:36,789 INFO L93 Difference]: Finished difference Result 163 states and 239 transitions. [2024-11-09 05:28:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:28:36,790 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 47 [2024-11-09 05:28:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:36,792 INFO L225 Difference]: With dead ends: 163 [2024-11-09 05:28:36,792 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 05:28:36,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:28:36,795 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 20 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:36,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 768 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 05:28:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 05:28:36,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-11-09 05:28:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.48) internal successors, (111), 76 states have internal predecessors, (111), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:28:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2024-11-09 05:28:36,829 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 47 [2024-11-09 05:28:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:36,830 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2024-11-09 05:28:36,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:28:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2024-11-09 05:28:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:28:36,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:36,833 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:28:36,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:28:37,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:37,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:28:37,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:37,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1738341783, now seen corresponding path program 1 times [2024-11-09 05:28:37,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:37,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125503410] [2024-11-09 05:28:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:37,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:28:37,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:37,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125503410] [2024-11-09 05:28:37,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125503410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:37,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:37,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:37,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764174986] [2024-11-09 05:28:37,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:37,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:28:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:28:37,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:28:37,134 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:28:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:37,235 INFO L93 Difference]: Finished difference Result 230 states and 337 transitions. [2024-11-09 05:28:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:28:37,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2024-11-09 05:28:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:37,238 INFO L225 Difference]: With dead ends: 230 [2024-11-09 05:28:37,239 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 05:28:37,240 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 05:28:37,241 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 46 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:37,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 165 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:28:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 05:28:37,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 142. [2024-11-09 05:28:37,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 120 states have (on average 1.55) internal successors, (186), 121 states have internal predecessors, (186), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:28:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 211 transitions. [2024-11-09 05:28:37,287 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 211 transitions. Word has length 48 [2024-11-09 05:28:37,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:37,288 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 211 transitions. [2024-11-09 05:28:37,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:28:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 211 transitions. [2024-11-09 05:28:37,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:28:37,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:37,291 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:28:37,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:28:37,292 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:28:37,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:37,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1824186508, now seen corresponding path program 1 times [2024-11-09 05:28:37,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909926545] [2024-11-09 05:28:37,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:37,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:37,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:28:37,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909926545] [2024-11-09 05:28:37,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909926545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:28:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292064972] [2024-11-09 05:28:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:37,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:37,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:37,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:37,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:28:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:37,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:28:37,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:28:37,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:28:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:28:37,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292064972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:28:37,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [661897390] [2024-11-09 05:28:37,890 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:28:37,890 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:28:37,890 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:28:37,891 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:28:37,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:28:54,414 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:28:54,566 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:31,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [661897390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:31,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:29:31,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [4, 4, 4] total 20 [2024-11-09 05:29:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854873479] [2024-11-09 05:29:31,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:31,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:29:31,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:29:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:29:31,212 INFO L87 Difference]: Start difference. First operand 142 states and 211 transitions. Second operand has 15 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:29:34,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:34,040 INFO L93 Difference]: Finished difference Result 272 states and 419 transitions. [2024-11-09 05:29:34,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:29:34,042 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 49 [2024-11-09 05:29:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:34,044 INFO L225 Difference]: With dead ends: 272 [2024-11-09 05:29:34,044 INFO L226 Difference]: Without dead ends: 185 [2024-11-09 05:29:34,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:29:34,046 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 18 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:34,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 778 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 05:29:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-09 05:29:34,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 150. [2024-11-09 05:29:34,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.546875) internal successors, (198), 129 states have internal predecessors, (198), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:29:34,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 223 transitions. [2024-11-09 05:29:34,088 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 223 transitions. Word has length 49 [2024-11-09 05:29:34,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:34,089 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 223 transitions. [2024-11-09 05:29:34,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:29:34,089 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 223 transitions. [2024-11-09 05:29:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:29:34,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:34,092 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:29:34,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:29:34,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:34,293 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:29:34,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1983910332, now seen corresponding path program 1 times [2024-11-09 05:29:34,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954267] [2024-11-09 05:29:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:29:34,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:34,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954267] [2024-11-09 05:29:34,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:34,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414742468] [2024-11-09 05:29:34,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:34,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:34,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:34,434 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:34,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:29:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:34,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:29:34,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:29:34,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:34,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:29:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414742468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:29:34,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1936132366] [2024-11-09 05:29:34,843 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2024-11-09 05:29:34,843 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:34,844 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:34,844 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:34,844 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:29:51,821 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:29:52,048 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:30:28,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1936132366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:30:28,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:30:28,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [4, 4, 4] total 21 [2024-11-09 05:30:28,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695215334] [2024-11-09 05:30:28,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:30:28,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:30:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:28,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:30:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-11-09 05:30:28,821 INFO L87 Difference]: Start difference. First operand 150 states and 223 transitions. Second operand has 16 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:30:31,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:31,016 INFO L93 Difference]: Finished difference Result 278 states and 428 transitions. [2024-11-09 05:30:31,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:30:31,017 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2024-11-09 05:30:31,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:31,018 INFO L225 Difference]: With dead ends: 278 [2024-11-09 05:30:31,019 INFO L226 Difference]: Without dead ends: 191 [2024-11-09 05:30:31,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-11-09 05:30:31,021 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 16 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:31,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 676 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 05:30:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-09 05:30:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 160. [2024-11-09 05:30:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 138 states have (on average 1.5434782608695652) internal successors, (213), 139 states have internal predecessors, (213), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:30:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2024-11-09 05:30:31,059 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 51 [2024-11-09 05:30:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:31,059 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2024-11-09 05:30:31,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:30:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2024-11-09 05:30:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:30:31,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:31,061 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] [2024-11-09 05:30:31,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:30:31,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:31,262 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:30:31,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash 387079431, now seen corresponding path program 1 times [2024-11-09 05:30:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:31,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864315188] [2024-11-09 05:30:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:30:31,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:31,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864315188] [2024-11-09 05:30:31,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864315188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:30:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242188343] [2024-11-09 05:30:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:31,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:31,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:31,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:31,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:30:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:31,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:30:31,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:30:31,702 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:30:31,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242188343] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:30:31,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [329900661] [2024-11-09 05:30:31,782 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:30:31,782 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:31,783 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:31,783 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:31,783 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:30:47,110 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:30:47,249 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 241 for LOIs [2024-11-09 05:30:49,706 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 229 for LOIs [2024-11-09 05:30:49,809 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 239 for LOIs [2024-11-09 05:30:53,721 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 233 for LOIs [2024-11-09 05:30:53,800 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2024-11-09 05:30:53,884 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 248 for LOIs [2024-11-09 05:30:54,706 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:31:38,966 WARN L286 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 264 DAG size of output: 248 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:32:06,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [329900661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:06,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:32:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [6, 5, 5] total 47 [2024-11-09 05:32:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106095377] [2024-11-09 05:32:06,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:06,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-09 05:32:06,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:06,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-09 05:32:06,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=2038, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 05:32:06,222 INFO L87 Difference]: Start difference. First operand 160 states and 238 transitions. Second operand has 39 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:32:18,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:18,078 INFO L93 Difference]: Finished difference Result 351 states and 527 transitions. [2024-11-09 05:32:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-09 05:32:18,079 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 52 [2024-11-09 05:32:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:18,081 INFO L225 Difference]: With dead ends: 351 [2024-11-09 05:32:18,082 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 05:32:18,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 76.9s TimeCoverageRelationStatistics Valid=128, Invalid=2128, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 05:32:18,083 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 42 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 2399 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:18,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 1660 Invalid, 2417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2399 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-09 05:32:18,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 05:32:18,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 187. [2024-11-09 05:32:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.4901960784313726) internal successors, (228), 154 states have internal predecessors, (228), 20 states have call successors, (20), 15 states have call predecessors, (20), 13 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 05:32:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 267 transitions. [2024-11-09 05:32:18,151 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 267 transitions. Word has length 52 [2024-11-09 05:32:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:18,151 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 267 transitions. [2024-11-09 05:32:18,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:32:18,152 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 267 transitions. [2024-11-09 05:32:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 05:32:18,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:18,154 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:32:18,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:32:18,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:18,355 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:18,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash 342424543, now seen corresponding path program 1 times [2024-11-09 05:32:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151689819] [2024-11-09 05:32:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:18,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:32:18,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:18,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151689819] [2024-11-09 05:32:18,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151689819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:18,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882761909] [2024-11-09 05:32:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:18,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:18,464 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:18,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:32:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:18,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:32:18,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:18,741 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:32:18,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:32:18,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882761909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:32:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1068039459] [2024-11-09 05:32:18,809 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:32:18,809 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:18,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:18,810 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:18,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:43,118 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:32:43,269 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:26,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1068039459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:26,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:33:26,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [4, 4, 4] total 22 [2024-11-09 05:33:26,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382750463] [2024-11-09 05:33:26,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:26,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 05:33:26,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:26,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 05:33:26,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:33:26,818 INFO L87 Difference]: Start difference. First operand 187 states and 267 transitions. Second operand has 17 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:33:30,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:30,291 INFO L93 Difference]: Finished difference Result 313 states and 469 transitions. [2024-11-09 05:33:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:33:30,292 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-11-09 05:33:30,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:30,294 INFO L225 Difference]: With dead ends: 313 [2024-11-09 05:33:30,294 INFO L226 Difference]: Without dead ends: 226 [2024-11-09 05:33:30,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:33:30,296 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 14 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:30,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 776 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 05:33:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-09 05:33:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2024-11-09 05:33:30,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 165 states have (on average 1.490909090909091) internal successors, (246), 166 states have internal predecessors, (246), 20 states have call successors, (20), 15 states have call predecessors, (20), 13 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 05:33:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 285 transitions. [2024-11-09 05:33:30,366 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 285 transitions. Word has length 53 [2024-11-09 05:33:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:30,367 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 285 transitions. [2024-11-09 05:33:30,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:33:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 285 transitions. [2024-11-09 05:33:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:33:30,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:30,369 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] [2024-11-09 05:33:30,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:30,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:30,570 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:30,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash -64342017, now seen corresponding path program 1 times [2024-11-09 05:33:30,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:30,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226957437] [2024-11-09 05:33:30,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:30,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:33:30,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:30,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226957437] [2024-11-09 05:33:30,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226957437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:30,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749816212] [2024-11-09 05:33:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:30,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:30,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:30,734 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:30,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:33:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:31,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:33:31,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:33:31,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:33:31,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749816212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:33:31,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1766740447] [2024-11-09 05:33:31,159 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2024-11-09 05:33:31,159 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:33:31,159 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:33:31,160 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:33:31,160 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:33:50,897 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:33:51,067 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 241 for LOIs [2024-11-09 05:33:54,912 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 229 for LOIs [2024-11-09 05:33:55,033 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 239 for LOIs [2024-11-09 05:33:59,064 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2024-11-09 05:33:59,174 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 248 for LOIs [2024-11-09 05:34:00,521 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:34:57,791 WARN L286 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 264 DAG size of output: 248 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:35:22,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1766740447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:22,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:35:22,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [6, 5, 5] total 43 [2024-11-09 05:35:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723731912] [2024-11-09 05:35:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:22,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 05:35:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:22,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 05:35:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1691, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 05:35:22,549 INFO L87 Difference]: Start difference. First operand 199 states and 285 transitions. Second operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 21 states have internal predecessors, (30), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:35:33,028 WARN L286 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 255 DAG size of output: 244 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:35:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:37,725 INFO L93 Difference]: Finished difference Result 363 states and 539 transitions. [2024-11-09 05:35:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 05:35:37,726 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 21 states have internal predecessors, (30), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 54 [2024-11-09 05:35:37,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:37,729 INFO L225 Difference]: With dead ends: 363 [2024-11-09 05:35:37,729 INFO L226 Difference]: Without dead ends: 276 [2024-11-09 05:35:37,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 88.9s TimeCoverageRelationStatistics Valid=119, Invalid=1773, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:35:37,731 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 39 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:37,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1974 Invalid, 2472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-09 05:35:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-09 05:35:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 229. [2024-11-09 05:35:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 185 states have (on average 1.4648648648648648) internal successors, (271), 186 states have internal predecessors, (271), 26 states have call successors, (26), 21 states have call predecessors, (26), 17 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:35:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 322 transitions. [2024-11-09 05:35:37,822 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 322 transitions. Word has length 54 [2024-11-09 05:35:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:37,822 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 322 transitions. [2024-11-09 05:35:37,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 21 states have internal predecessors, (30), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:35:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 322 transitions. [2024-11-09 05:35:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:35:37,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:37,825 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:35:37,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:35:38,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:38,026 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:38,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1677296326, now seen corresponding path program 1 times [2024-11-09 05:35:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481460674] [2024-11-09 05:35:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:35:38,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:38,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481460674] [2024-11-09 05:35:38,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481460674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:35:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591265324] [2024-11-09 05:35:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:38,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:38,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:35:38,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:35:38,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:35:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:38,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:35:38,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:35:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:35:38,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:35:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:35:38,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591265324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:35:38,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1980021289] [2024-11-09 05:35:38,576 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:35:38,576 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:35:38,576 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:35:38,577 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:35:38,577 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:36:04,575 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:36:04,758 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:37:02,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1980021289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:02,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:37:02,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 4, 4] total 23 [2024-11-09 05:37:02,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123298730] [2024-11-09 05:37:02,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:02,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:37:02,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:02,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:37:02,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:37:02,194 INFO L87 Difference]: Start difference. First operand 229 states and 322 transitions. Second operand has 18 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:37:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:05,543 INFO L93 Difference]: Finished difference Result 353 states and 521 transitions. [2024-11-09 05:37:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:37:05,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 55 [2024-11-09 05:37:05,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:05,546 INFO L225 Difference]: With dead ends: 353 [2024-11-09 05:37:05,547 INFO L226 Difference]: Without dead ends: 266 [2024-11-09 05:37:05,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 57.4s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:37:05,549 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 12 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:05,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 660 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 05:37:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-09 05:37:05,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 243. [2024-11-09 05:37:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 199 states have (on average 1.4673366834170853) internal successors, (292), 200 states have internal predecessors, (292), 26 states have call successors, (26), 21 states have call predecessors, (26), 17 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:37:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 343 transitions. [2024-11-09 05:37:05,668 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 343 transitions. Word has length 55 [2024-11-09 05:37:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:05,668 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 343 transitions. [2024-11-09 05:37:05,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:37:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 343 transitions. [2024-11-09 05:37:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:37:05,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:05,671 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] [2024-11-09 05:37:05,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:37:05,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:37:05,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:05,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1788362022, now seen corresponding path program 1 times [2024-11-09 05:37:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:05,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140185975] [2024-11-09 05:37:05,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:05,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:37:06,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:06,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140185975] [2024-11-09 05:37:06,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140185975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:37:06,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284797375] [2024-11-09 05:37:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:06,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:37:06,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:06,048 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:37:06,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:37:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:06,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:37:06,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:37:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:37:06,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:37:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:37:06,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284797375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:37:06,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1355972529] [2024-11-09 05:37:06,561 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:37:06,562 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:37:06,562 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:37:06,562 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:37:06,562 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:37:26,806 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:37:26,995 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 241 for LOIs [2024-11-09 05:37:30,135 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 229 for LOIs [2024-11-09 05:37:30,251 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 239 for LOIs [2024-11-09 05:37:33,348 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2024-11-09 05:37:33,458 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 248 for LOIs [2024-11-09 05:37:34,708 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:38:35,351 WARN L286 SmtUtils]: Spent 7.65s on a formula simplification. DAG size of input: 264 DAG size of output: 248 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:39:00,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1355972529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:00,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:39:00,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [6, 5, 5] total 44 [2024-11-09 05:39:00,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666701017] [2024-11-09 05:39:00,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:00,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-09 05:39:00,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:00,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-09 05:39:00,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1770, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:39:00,612 INFO L87 Difference]: Start difference. First operand 243 states and 343 transitions. Second operand has 36 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 22 states have internal predecessors, (32), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:39:11,878 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 255 DAG size of output: 244 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:39:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:16,022 INFO L93 Difference]: Finished difference Result 403 states and 591 transitions. [2024-11-09 05:39:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 05:39:16,023 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 22 states have internal predecessors, (32), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 56 [2024-11-09 05:39:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:16,025 INFO L225 Difference]: With dead ends: 403 [2024-11-09 05:39:16,025 INFO L226 Difference]: Without dead ends: 316 [2024-11-09 05:39:16,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 93.0s TimeCoverageRelationStatistics Valid=126, Invalid=1854, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:39:16,028 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 56 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:16,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1789 Invalid, 2421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-09 05:39:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-09 05:39:16,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 254. [2024-11-09 05:39:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 210 states have (on average 1.4714285714285715) internal successors, (309), 211 states have internal predecessors, (309), 26 states have call successors, (26), 21 states have call predecessors, (26), 17 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:39:16,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 360 transitions. [2024-11-09 05:39:16,130 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 360 transitions. Word has length 56 [2024-11-09 05:39:16,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:16,131 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 360 transitions. [2024-11-09 05:39:16,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 22 states have internal predecessors, (32), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:39:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 360 transitions. [2024-11-09 05:39:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:39:16,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:16,134 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:39:16,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:39:16,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:16,334 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:16,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1729169613, now seen corresponding path program 1 times [2024-11-09 05:39:16,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:16,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797841627] [2024-11-09 05:39:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:16,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:39:16,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797841627] [2024-11-09 05:39:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797841627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:39:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221777222] [2024-11-09 05:39:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:16,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:16,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:39:16,567 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:39:16,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:39:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:16,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:39:16,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:39:16,983 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:39:16,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:39:17,092 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:39:17,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221777222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:39:17,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [111695320] [2024-11-09 05:39:17,095 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2024-11-09 05:39:17,096 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:39:17,096 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:39:17,096 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:39:17,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:39:37,216 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2024-11-09 05:39:37,401 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 242 for LOIs [2024-11-09 05:39:40,575 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2024-11-09 05:39:40,693 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 240 for LOIs [2024-11-09 05:39:45,517 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 233 for LOIs [2024-11-09 05:39:45,621 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 231 for LOIs [2024-11-09 05:39:45,727 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 249 for LOIs [2024-11-09 05:39:46,813 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:40:44,480 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 265 DAG size of output: 249 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:41:20,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [111695320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:20,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:20,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [6, 5, 5] total 48 [2024-11-09 05:41:20,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144474696] [2024-11-09 05:41:20,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:20,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-09 05:41:20,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:20,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-09 05:41:20,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=2127, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 05:41:20,351 INFO L87 Difference]: Start difference. First operand 254 states and 360 transitions. Second operand has 40 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:41:34,274 WARN L286 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 256 DAG size of output: 246 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:41:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:39,864 INFO L93 Difference]: Finished difference Result 489 states and 704 transitions. [2024-11-09 05:41:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 05:41:39,865 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 56 [2024-11-09 05:41:39,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:39,867 INFO L225 Difference]: With dead ends: 489 [2024-11-09 05:41:39,868 INFO L226 Difference]: Without dead ends: 331 [2024-11-09 05:41:39,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 102.8s TimeCoverageRelationStatistics Valid=141, Invalid=2309, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 05:41:39,870 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 57 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 2992 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:39,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 2231 Invalid, 3010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2992 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-09 05:41:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-09 05:41:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 259. [2024-11-09 05:41:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 215 states have (on average 1.4651162790697674) internal successors, (315), 216 states have internal predecessors, (315), 26 states have call successors, (26), 21 states have call predecessors, (26), 17 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:41:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 366 transitions. [2024-11-09 05:41:39,997 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 366 transitions. Word has length 56 [2024-11-09 05:41:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:39,998 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 366 transitions. [2024-11-09 05:41:39,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 24 states have internal predecessors, (30), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:41:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 366 transitions. [2024-11-09 05:41:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 05:41:40,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:40,000 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:41:40,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 05:41:40,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 05:41:40,201 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:41:40,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1253408171, now seen corresponding path program 1 times [2024-11-09 05:41:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:40,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857609919] [2024-11-09 05:41:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:41:40,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:40,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857609919] [2024-11-09 05:41:40,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857609919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:40,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853478384] [2024-11-09 05:41:40,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:40,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:40,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:40,321 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:40,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5861759a-bbfe-4750-800f-8002b2d60926/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:41:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:40,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:41:40,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:41:40,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:41:40,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853478384] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:40,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [987433250] [2024-11-09 05:41:40,727 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 05:41:40,727 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:40,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:40,728 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:40,728 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs