./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire --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 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:24:19,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:24:19,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:24:19,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:24:19,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:24:19,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:24:19,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:24:19,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:24:19,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:24:19,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:24:19,285 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:24:19,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:24:19,286 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:24:19,287 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:24:19,288 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:24:19,288 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:24:19,289 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:24:19,289 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:24:19,290 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:24:19,290 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:24:19,291 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:24:19,292 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:24:19,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:24:19,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:24:19,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:24:19,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:24:19,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:24:19,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:24:19,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:24:19,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:24:19,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:24:19,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:24:19,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:24:19,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:24:19,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:24:19,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:24:19,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:24:19,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:24:19,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:24:19,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:24:19,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:24:19,302 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:24:19,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:24:19,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:24:19,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:24:19,303 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:24:19,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:24:19,304 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_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc [2023-11-23 21:24:19,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:24:19,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:24:19,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:24:19,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:24:19,699 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:24:19,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2023-11-23 21:24:22,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:24:23,231 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:24:23,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2023-11-23 21:24:23,269 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/data/d60e0dc7c/bfca0a03797b474eaa866bed5a6849fb/FLAG1ac104a80 [2023-11-23 21:24:23,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/data/d60e0dc7c/bfca0a03797b474eaa866bed5a6849fb [2023-11-23 21:24:23,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:24:23,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:24:23,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:24:23,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:24:23,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:24:23,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:24:23" (1/1) ... [2023-11-23 21:24:23,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ad4484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:23, skipping insertion in model container [2023-11-23 21:24:23,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:24:23" (1/1) ... [2023-11-23 21:24:23,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:24:23,687 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2023-11-23 21:24:24,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:24:24,137 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:24:24,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-23 21:24:24,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [97] [2023-11-23 21:24:24,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [398] [2023-11-23 21:24:24,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [407] [2023-11-23 21:24:24,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [519] [2023-11-23 21:24:24,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [735] [2023-11-23 21:24:24,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1101] [2023-11-23 21:24:24,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2173] [2023-11-23 21:24:24,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2578] [2023-11-23 21:24:24,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2597] [2023-11-23 21:24:24,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2614] [2023-11-23 21:24:24,183 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2023-11-23 21:24:24,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:24:24,340 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:24:24,348 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:24:24,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24 WrapperNode [2023-11-23 21:24:24,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:24:24,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:24:24,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:24:24,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:24:24,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,477 INFO L138 Inliner]: procedures = 125, calls = 195, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 981 [2023-11-23 21:24:24,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:24:24,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:24:24,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:24:24,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:24:24,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:24:24,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:24:24,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:24:24,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:24:24,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (1/1) ... [2023-11-23 21:24:24,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:24:24,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:24:24,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:24:24,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:24:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:24:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:24:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:24:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:24:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:24:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:24:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:24:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:24:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:24:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:24:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:24:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:24:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:24:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:24:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:24:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:24:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:24:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:24:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:24:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:24:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:24:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:24:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:24:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:24:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:24:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:24:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:24:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:24:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:24:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:24:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:24:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:24:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:24:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:24:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:24:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:24:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:24:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:24:24,989 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:24:24,991 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:24:25,954 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:24:26,596 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:24:26,597 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:24:26,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:26 BoogieIcfgContainer [2023-11-23 21:24:26,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:24:26,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:24:26,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:24:26,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:24:26,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:24:23" (1/3) ... [2023-11-23 21:24:26,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b69cc34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:24:26, skipping insertion in model container [2023-11-23 21:24:26,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:24" (2/3) ... [2023-11-23 21:24:26,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b69cc34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:24:26, skipping insertion in model container [2023-11-23 21:24:26,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:26" (3/3) ... [2023-11-23 21:24:26,609 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2023-11-23 21:24:26,632 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:24:26,632 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:24:26,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:24:26,715 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@432ede47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:24:26,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:24:26,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 92 states have (on average 1.358695652173913) internal successors, (125), 96 states have internal predecessors, (125), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 21:24:26,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:24:26,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:26,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:26,739 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:26,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:26,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1877525163, now seen corresponding path program 1 times [2023-11-23 21:24:26,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:26,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275191185] [2023-11-23 21:24:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:26,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:24:27,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:27,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275191185] [2023-11-23 21:24:27,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275191185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:27,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:27,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:24:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192682973] [2023-11-23 21:24:27,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:27,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:24:27,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:27,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:24:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:24:27,290 INFO L87 Difference]: Start difference. First operand has 156 states, 92 states have (on average 1.358695652173913) internal successors, (125), 96 states have internal predecessors, (125), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:24:27,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:27,395 INFO L93 Difference]: Finished difference Result 229 states and 308 transitions. [2023-11-23 21:24:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:24:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2023-11-23 21:24:27,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:27,409 INFO L225 Difference]: With dead ends: 229 [2023-11-23 21:24:27,410 INFO L226 Difference]: Without dead ends: 153 [2023-11-23 21:24:27,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:24:27,417 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:27,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-23 21:24:27,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-23 21:24:27,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 93 states have internal predecessors, (119), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-23 21:24:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 208 transitions. [2023-11-23 21:24:27,473 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 208 transitions. Word has length 70 [2023-11-23 21:24:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:27,474 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 208 transitions. [2023-11-23 21:24:27,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:24:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 208 transitions. [2023-11-23 21:24:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:24:27,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:27,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:27,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:24:27,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:27,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash -347768135, now seen corresponding path program 1 times [2023-11-23 21:24:27,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:27,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407437634] [2023-11-23 21:24:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:24:27,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407437634] [2023-11-23 21:24:27,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407437634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:27,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:27,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:27,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676308618] [2023-11-23 21:24:27,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:27,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:27,755 INFO L87 Difference]: Start difference. First operand 153 states and 208 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:24:27,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:27,863 INFO L93 Difference]: Finished difference Result 225 states and 296 transitions. [2023-11-23 21:24:27,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:27,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-11-23 21:24:27,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:27,869 INFO L225 Difference]: With dead ends: 225 [2023-11-23 21:24:27,869 INFO L226 Difference]: Without dead ends: 155 [2023-11-23 21:24:27,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:27,877 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:27,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:27,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-23 21:24:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-23 21:24:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 92 states have (on average 1.315217391304348) internal successors, (121), 95 states have internal predecessors, (121), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-23 21:24:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 210 transitions. [2023-11-23 21:24:27,905 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 210 transitions. Word has length 71 [2023-11-23 21:24:27,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:27,906 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 210 transitions. [2023-11-23 21:24:27,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:24:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 210 transitions. [2023-11-23 21:24:27,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:24:27,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:27,909 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:27,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:24:27,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:27,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:27,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1938913724, now seen corresponding path program 1 times [2023-11-23 21:24:27,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:27,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727222433] [2023-11-23 21:24:27,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:24:28,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:28,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727222433] [2023-11-23 21:24:28,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727222433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:28,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:28,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:28,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116080998] [2023-11-23 21:24:28,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:28,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:28,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:28,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:28,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:28,092 INFO L87 Difference]: Start difference. First operand 155 states and 210 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:24:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:28,195 INFO L93 Difference]: Finished difference Result 340 states and 479 transitions. [2023-11-23 21:24:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2023-11-23 21:24:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:28,198 INFO L225 Difference]: With dead ends: 340 [2023-11-23 21:24:28,200 INFO L226 Difference]: Without dead ends: 203 [2023-11-23 21:24:28,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:28,204 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 57 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:28,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 367 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-23 21:24:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2023-11-23 21:24:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 124 states have (on average 1.403225806451613) internal successors, (174), 127 states have internal predecessors, (174), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-23 21:24:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 285 transitions. [2023-11-23 21:24:28,242 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 285 transitions. Word has length 76 [2023-11-23 21:24:28,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:28,244 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 285 transitions. [2023-11-23 21:24:28,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:24:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 285 transitions. [2023-11-23 21:24:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 21:24:28,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:28,280 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:28,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:24:28,281 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:28,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:28,281 INFO L85 PathProgramCache]: Analyzing trace with hash -586814408, now seen corresponding path program 1 times [2023-11-23 21:24:28,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:28,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957897028] [2023-11-23 21:24:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:24:28,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:28,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957897028] [2023-11-23 21:24:28,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957897028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:24:28,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972348262] [2023-11-23 21:24:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:28,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:24:28,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:24:28,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:24:28,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bbc375-3a5b-4059-ac48-12f75a03f5a3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:24:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:28,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:24:28,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:24:28,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:24:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:24:29,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972348262] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:24:29,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2118353058] [2023-11-23 21:24:29,073 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2023-11-23 21:24:29,074 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:24:29,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:24:29,083 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:24:29,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:25:13,613 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-23 21:25:13,825 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-11-23 21:25:14,072 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:25:19,170 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 445 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)