./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh --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 312fc8529e2c53d6a3be2cb9c54168ebb93fc3f65452574800e27c42fdf03e19 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:47:48,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:47:48,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:47:48,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:47:48,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:47:48,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:47:48,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:47:48,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:47:48,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:47:48,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:47:48,898 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:47:48,898 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:47:48,899 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:47:48,899 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:47:48,900 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:47:48,900 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:47:48,901 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:47:48,901 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:47:48,902 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:47:48,902 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:47:48,903 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:47:48,904 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:47:48,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:47:48,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:47:48,905 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:47:48,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:47:48,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:47:48,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:47:48,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:47:48,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:47:48,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:47:48,908 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:47:48,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:47:48,908 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:47:48,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:47:48,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:47:48,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:47:48,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:47:48,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:47:48,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:47:48,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:47:48,910 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:47:48,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:47:48,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:47:48,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:47:48,911 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:47:48,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:47:48,911 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_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 312fc8529e2c53d6a3be2cb9c54168ebb93fc3f65452574800e27c42fdf03e19 [2023-12-02 18:47:49,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:47:49,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:47:49,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:47:49,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:47:49,153 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:47:49,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2023-12-02 18:47:51,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:47:52,254 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:47:52,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2023-12-02 18:47:52,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/data/7304bc97c/a338557b9d0f474080d28aa1a11641c9/FLAG8c9924be9 [2023-12-02 18:47:52,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/data/7304bc97c/a338557b9d0f474080d28aa1a11641c9 [2023-12-02 18:47:52,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:47:52,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:47:52,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:47:52,295 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:47:52,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:47:52,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:47:52" (1/1) ... [2023-12-02 18:47:52,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca30b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:52, skipping insertion in model container [2023-12-02 18:47:52,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:47:52" (1/1) ... [2023-12-02 18:47:52,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:47:52,881 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_a9a337f5-e65c-470e-90b3-0eea6eba1b22/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c[62782,62795] [2023-12-02 18:47:52,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:47:52,899 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:47:52,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-02 18:47:52,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [277] [2023-12-02 18:47:52,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [643] [2023-12-02 18:47:52,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1055] [2023-12-02 18:47:52,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1371] [2023-12-02 18:47:52,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2442] [2023-12-02 18:47:52,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2764] [2023-12-02 18:47:52,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2783] [2023-12-02 18:47:52,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2879] [2023-12-02 18:47:52,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2896] [2023-12-02 18:47:52,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2931] [2023-12-02 18:47:53,003 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_a9a337f5-e65c-470e-90b3-0eea6eba1b22/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c[62782,62795] [2023-12-02 18:47:53,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:47:53,076 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:47:53,084 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:47:53,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53 WrapperNode [2023-12-02 18:47:53,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:47:53,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:47:53,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:47:53,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:47:53,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,176 INFO L138 Inliner]: procedures = 130, calls = 206, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1065 [2023-12-02 18:47:53,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:47:53,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:47:53,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:47:53,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:47:53,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:47:53,254 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:47:53,254 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:47:53,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:47:53,255 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (1/1) ... [2023-12-02 18:47:53,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:47:53,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:47:53,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:47:53,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:47:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 18:47:53,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 18:47:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 18:47:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 18:47:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 18:47:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 18:47:53,332 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 18:47:53,332 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 18:47:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 18:47:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 18:47:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 18:47:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 18:47:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 18:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 18:47:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 18:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 18:47:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 18:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 18:47:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 18:47:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:47:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 18:47:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 18:47:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 18:47:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 18:47:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 18:47:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 18:47:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 18:47:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 18:47:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 18:47:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 18:47:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 18:47:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 18:47:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 18:47:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 18:47:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:47:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 18:47:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 18:47:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:47:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:47:53,535 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:47:53,538 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:47:54,268 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:47:54,727 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:47:54,727 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:47:54,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:47:54 BoogieIcfgContainer [2023-12-02 18:47:54,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:47:54,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:47:54,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:47:54,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:47:54,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:47:52" (1/3) ... [2023-12-02 18:47:54,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26489485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:47:54, skipping insertion in model container [2023-12-02 18:47:54,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:53" (2/3) ... [2023-12-02 18:47:54,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26489485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:47:54, skipping insertion in model container [2023-12-02 18:47:54,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:47:54" (3/3) ... [2023-12-02 18:47:54,737 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product24.cil.c [2023-12-02 18:47:54,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:47:54,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:47:54,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:47:54,807 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;@189ef0c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:47:54,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:47:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 96 states have (on average 1.34375) internal successors, (129), 98 states have internal predecessors, (129), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 18:47:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 18:47:54,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:54,824 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:54,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:47:54,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:54,830 INFO L85 PathProgramCache]: Analyzing trace with hash -963169550, now seen corresponding path program 1 times [2023-12-02 18:47:54,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:54,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461963531] [2023-12-02 18:47:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:54,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:47:55,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461963531] [2023-12-02 18:47:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461963531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:55,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:55,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:47:55,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835830402] [2023-12-02 18:47:55,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:55,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:47:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:47:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:47:55,192 INFO L87 Difference]: Start difference. First operand has 161 states, 96 states have (on average 1.34375) internal successors, (129), 98 states have internal predecessors, (129), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 18:47:55,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:55,327 INFO L93 Difference]: Finished difference Result 239 states and 320 transitions. [2023-12-02 18:47:55,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:47:55,329 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 53 [2023-12-02 18:47:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:55,341 INFO L225 Difference]: With dead ends: 239 [2023-12-02 18:47:55,341 INFO L226 Difference]: Without dead ends: 158 [2023-12-02 18:47:55,347 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 [2023-12-02 18:47:55,350 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:55,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:47:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-02 18:47:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-12-02 18:47:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 95 states have internal predecessors, (123), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 18:47:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 214 transitions. [2023-12-02 18:47:55,402 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 214 transitions. Word has length 53 [2023-12-02 18:47:55,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:55,403 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 214 transitions. [2023-12-02 18:47:55,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 18:47:55,404 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 214 transitions. [2023-12-02 18:47:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 18:47:55,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:55,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:55,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:47:55,408 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:47:55,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:55,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1382794261, now seen corresponding path program 1 times [2023-12-02 18:47:55,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:55,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382252914] [2023-12-02 18:47:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:55,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:47:55,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:55,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382252914] [2023-12-02 18:47:55,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382252914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:55,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:55,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:55,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028769230] [2023-12-02 18:47:55,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:55,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:55,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:55,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:55,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:55,596 INFO L87 Difference]: Start difference. First operand 158 states and 214 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 18:47:55,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:55,711 INFO L93 Difference]: Finished difference Result 235 states and 308 transitions. [2023-12-02 18:47:55,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:55,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2023-12-02 18:47:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:55,715 INFO L225 Difference]: With dead ends: 235 [2023-12-02 18:47:55,716 INFO L226 Difference]: Without dead ends: 160 [2023-12-02 18:47:55,717 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 [2023-12-02 18:47:55,719 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:55,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:47:55,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-02 18:47:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-12-02 18:47:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 97 states have internal predecessors, (125), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 18:47:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 216 transitions. [2023-12-02 18:47:55,740 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 216 transitions. Word has length 54 [2023-12-02 18:47:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:55,741 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 216 transitions. [2023-12-02 18:47:55,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 18:47:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 216 transitions. [2023-12-02 18:47:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 18:47:55,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:55,744 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:55,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:47:55,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:47:55,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:55,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1558306469, now seen corresponding path program 1 times [2023-12-02 18:47:55,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:55,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161146920] [2023-12-02 18:47:55,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:55,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:47:55,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:55,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161146920] [2023-12-02 18:47:55,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161146920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:55,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:55,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:55,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543902483] [2023-12-02 18:47:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:55,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:55,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:55,876 INFO L87 Difference]: Start difference. First operand 160 states and 216 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 18:47:55,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:55,986 INFO L93 Difference]: Finished difference Result 350 states and 491 transitions. [2023-12-02 18:47:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:55,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2023-12-02 18:47:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:55,990 INFO L225 Difference]: With dead ends: 350 [2023-12-02 18:47:55,990 INFO L226 Difference]: Without dead ends: 208 [2023-12-02 18:47:55,992 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 [2023-12-02 18:47:55,993 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 57 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 375 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 [2023-12-02 18:47:55,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 375 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:47:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-02 18:47:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 203. [2023-12-02 18:47:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 128 states have (on average 1.390625) internal successors, (178), 129 states have internal predecessors, (178), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-02 18:47:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 291 transitions. [2023-12-02 18:47:56,016 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 291 transitions. Word has length 59 [2023-12-02 18:47:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:56,016 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 291 transitions. [2023-12-02 18:47:56,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 18:47:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 291 transitions. [2023-12-02 18:47:56,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 18:47:56,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:56,020 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:56,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:47:56,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:47:56,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1804208334, now seen corresponding path program 1 times [2023-12-02 18:47:56,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:56,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596035195] [2023-12-02 18:47:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:56,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:47:56,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:56,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596035195] [2023-12-02 18:47:56,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596035195] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:47:56,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678686763] [2023-12-02 18:47:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:56,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:47:56,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:47:56,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:47:56,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:47:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:56,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:47:56,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:47:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:47:56,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:47:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:47:56,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678686763] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:47:56,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1741492037] [2023-12-02 18:47:56,667 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2023-12-02 18:47:56,668 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:47:56,671 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:47:56,677 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:47:56,677 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:48:41,587 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:48:41,756 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 18:48:41,922 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:49:35,091 WARN L293 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 490 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:49:48,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1741492037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:49:48,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:49:48,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 18:49:48,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606445781] [2023-12-02 18:49:48,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:49:48,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 18:49:48,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:49:48,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 18:49:48,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 18:49:48,741 INFO L87 Difference]: Start difference. First operand 203 states and 291 transitions. Second operand has 24 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 18:49:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:49:59,415 INFO L93 Difference]: Finished difference Result 451 states and 678 transitions. [2023-12-02 18:49:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 18:49:59,416 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 60 [2023-12-02 18:49:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:49:59,419 INFO L225 Difference]: With dead ends: 451 [2023-12-02 18:49:59,419 INFO L226 Difference]: Without dead ends: 266 [2023-12-02 18:49:59,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 66.8s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 18:49:59,421 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 84 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:49:59,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 3069 Invalid, 2392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 18:49:59,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-02 18:49:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 226. [2023-12-02 18:49:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 150 states have (on average 1.4066666666666667) internal successors, (211), 151 states have internal predecessors, (211), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-02 18:49:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 324 transitions. [2023-12-02 18:49:59,499 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 324 transitions. Word has length 60 [2023-12-02 18:49:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:49:59,499 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 324 transitions. [2023-12-02 18:49:59,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 18:49:59,500 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 324 transitions. [2023-12-02 18:49:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 18:49:59,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:49:59,502 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:49:59,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:49:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:49:59,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:49:59,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:49:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash 980263537, now seen corresponding path program 1 times [2023-12-02 18:49:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:49:59,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408278555] [2023-12-02 18:49:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:49:59,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:49:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:49:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:49:59,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:49:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408278555] [2023-12-02 18:49:59,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408278555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:49:59,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:49:59,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:49:59,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195648466] [2023-12-02 18:49:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:49:59,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:49:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:49:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:49:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:49:59,812 INFO L87 Difference]: Start difference. First operand 226 states and 324 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 18:50:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:50:00,046 INFO L93 Difference]: Finished difference Result 545 states and 812 transitions. [2023-12-02 18:50:00,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:50:00,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2023-12-02 18:50:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:50:00,050 INFO L225 Difference]: With dead ends: 545 [2023-12-02 18:50:00,050 INFO L226 Difference]: Without dead ends: 343 [2023-12-02 18:50:00,051 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 [2023-12-02 18:50:00,052 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 55 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 381 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 [2023-12-02 18:50:00,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 381 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:50:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-02 18:50:00,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 338. [2023-12-02 18:50:00,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 237 states have (on average 1.4641350210970465) internal successors, (347), 238 states have internal predecessors, (347), 82 states have call successors, (82), 18 states have call predecessors, (82), 18 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 18:50:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 510 transitions. [2023-12-02 18:50:00,191 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 510 transitions. Word has length 65 [2023-12-02 18:50:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:50:00,192 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 510 transitions. [2023-12-02 18:50:00,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 18:50:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 510 transitions. [2023-12-02 18:50:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 18:50:00,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:50:00,195 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:50:00,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 18:50:00,196 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:50:00,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:50:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1095967517, now seen corresponding path program 1 times [2023-12-02 18:50:00,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:50:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479028880] [2023-12-02 18:50:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:50:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:50:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:50:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:50:00,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:50:00,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479028880] [2023-12-02 18:50:00,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479028880] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:50:00,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856519309] [2023-12-02 18:50:00,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:50:00,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:50:00,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:50:00,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:50:00,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 18:50:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:50:00,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:50:00,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:50:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:50:00,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:50:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:50:00,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856519309] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:50:00,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [202508347] [2023-12-02 18:50:00,632 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2023-12-02 18:50:00,633 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:50:00,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:50:00,633 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:50:00,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:50:53,112 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:50:53,289 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 466 for LOIs [2023-12-02 18:50:55,438 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:51:16,111 WARN L293 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 466 DAG size of output: 466 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:51:25,399 WARN L293 SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 496 DAG size of output: 491 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:52:02,840 WARN L293 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 493 DAG size of output: 493 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:52:22,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [202508347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:22,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:52:22,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 18:52:22,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222393212] [2023-12-02 18:52:22,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:22,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 18:52:22,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:52:22,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 18:52:22,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=931, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 18:52:22,725 INFO L87 Difference]: Start difference. First operand 338 states and 510 transitions. Second operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 18:52:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:35,939 INFO L93 Difference]: Finished difference Result 694 states and 1075 transitions. [2023-12-02 18:52:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 18:52:35,940 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 66 [2023-12-02 18:52:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:35,942 INFO L225 Difference]: With dead ends: 694 [2023-12-02 18:52:35,943 INFO L226 Difference]: Without dead ends: 419 [2023-12-02 18:52:35,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 91.1s TimeCoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 18:52:35,944 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 173 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2140 Invalid, 1840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-02 18:52:35,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-12-02 18:52:36,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 352. [2023-12-02 18:52:36,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 249 states have (on average 1.461847389558233) internal successors, (364), 250 states have internal predecessors, (364), 83 states have call successors, (83), 19 states have call predecessors, (83), 19 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-02 18:52:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 529 transitions. [2023-12-02 18:52:36,077 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 529 transitions. Word has length 66 [2023-12-02 18:52:36,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:36,077 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 529 transitions. [2023-12-02 18:52:36,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 18:52:36,078 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 529 transitions. [2023-12-02 18:52:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 18:52:36,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:36,079 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:36,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 18:52:36,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:36,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:36,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1333805729, now seen corresponding path program 1 times [2023-12-02 18:52:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:36,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195792668] [2023-12-02 18:52:36,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:36,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:52:36,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:52:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195792668] [2023-12-02 18:52:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195792668] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:52:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002442050] [2023-12-02 18:52:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:36,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:36,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:36,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:52:36,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 18:52:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:36,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:36,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:52:36,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:52:36,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002442050] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:36,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1002504029] [2023-12-02 18:52:36,779 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2023-12-02 18:52:36,779 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:52:36,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:52:36,780 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:52:36,780 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:54:06,187 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:54:06,351 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 533 for LOIs [2023-12-02 18:54:07,985 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 257 for LOIs [2023-12-02 18:54:08,279 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 18:54:08,442 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 542 for LOIs [2023-12-02 18:54:10,140 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:55:06,155 WARN L293 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 574 DAG size of output: 569 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:55:46,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1002504029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:55:46,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:55:46,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 18:55:46,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262474317] [2023-12-02 18:55:46,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:55:46,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 18:55:46,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:55:46,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 18:55:46,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:55:46,601 INFO L87 Difference]: Start difference. First operand 352 states and 529 transitions. Second operand has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 18:56:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:56:09,099 INFO L93 Difference]: Finished difference Result 717 states and 1108 transitions. [2023-12-02 18:56:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 18:56:09,100 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 69 [2023-12-02 18:56:09,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:56:09,104 INFO L225 Difference]: With dead ends: 717 [2023-12-02 18:56:09,104 INFO L226 Difference]: Without dead ends: 442 [2023-12-02 18:56:09,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 100.5s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 18:56:09,107 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 59 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 3237 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:56:09,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3206 Invalid, 3247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3237 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2023-12-02 18:56:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-02 18:56:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 388. [2023-12-02 18:56:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 279 states have (on average 1.4551971326164874) internal successors, (406), 280 states have internal predecessors, (406), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-02 18:56:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 577 transitions. [2023-12-02 18:56:09,252 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 577 transitions. Word has length 69 [2023-12-02 18:56:09,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:56:09,252 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 577 transitions. [2023-12-02 18:56:09,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 18:56:09,253 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 577 transitions. [2023-12-02 18:56:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 18:56:09,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:56:09,255 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:56:09,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 18:56:09,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:56:09,457 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:56:09,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:56:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1943974720, now seen corresponding path program 1 times [2023-12-02 18:56:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:56:09,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359546986] [2023-12-02 18:56:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:56:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:56:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:56:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:56:09,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:56:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359546986] [2023-12-02 18:56:09,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359546986] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:56:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127989812] [2023-12-02 18:56:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:56:09,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:56:09,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:56:09,570 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:56:09,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:56:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:56:09,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:56:09,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:56:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:56:09,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:56:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:56:09,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127989812] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:56:09,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [53719245] [2023-12-02 18:56:09,935 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2023-12-02 18:56:09,936 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:56:09,936 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:56:09,936 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:56:09,936 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:57:07,377 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:57:07,541 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 18:57:07,703 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:58:01,088 WARN L293 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:58:28,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [53719245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:58:28,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:58:28,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 18:58:28,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475530276] [2023-12-02 18:58:28,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:58:28,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 18:58:28,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:58:28,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 18:58:28,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 18:58:28,965 INFO L87 Difference]: Start difference. First operand 388 states and 577 transitions. Second operand has 32 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 18:58:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:58:42,406 INFO L93 Difference]: Finished difference Result 731 states and 1123 transitions. [2023-12-02 18:58:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 18:58:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 68 [2023-12-02 18:58:42,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:58:42,410 INFO L225 Difference]: With dead ends: 731 [2023-12-02 18:58:42,410 INFO L226 Difference]: Without dead ends: 456 [2023-12-02 18:58:42,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 84.9s TimeCoverageRelationStatistics Valid=168, Invalid=1238, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:58:42,413 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 120 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:58:42,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 2870 Invalid, 2498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-02 18:58:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-12-02 18:58:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 408. [2023-12-02 18:58:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 299 states have (on average 1.4581939799331103) internal successors, (436), 300 states have internal predecessors, (436), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-02 18:58:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 607 transitions. [2023-12-02 18:58:42,568 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 607 transitions. Word has length 68 [2023-12-02 18:58:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:58:42,568 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 607 transitions. [2023-12-02 18:58:42,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 18:58:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 607 transitions. [2023-12-02 18:58:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 18:58:42,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:58:42,570 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:58:42,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 18:58:42,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:58:42,770 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:58:42,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:58:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1579327464, now seen corresponding path program 1 times [2023-12-02 18:58:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:58:42,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147353679] [2023-12-02 18:58:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:42,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:58:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:58:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 18:58:42,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:58:42,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147353679] [2023-12-02 18:58:42,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147353679] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:58:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128671319] [2023-12-02 18:58:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:58:42,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:58:42,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:58:42,906 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:58:42,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 18:58:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:58:43,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:58:43,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:58:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:58:43,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:58:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 18:58:43,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128671319] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:58:43,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1832562862] [2023-12-02 18:58:43,295 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2023-12-02 18:58:43,296 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:58:43,296 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:58:43,296 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:58:43,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:59:39,143 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:59:39,305 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 468 for LOIs [2023-12-02 18:59:41,350 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:00:01,773 WARN L293 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 468 DAG size of output: 469 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:00:10,761 WARN L293 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:00:57,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1832562862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:57,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:00:57,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [6, 5, 5] total 35 [2023-12-02 19:00:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91974339] [2023-12-02 19:00:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:57,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 19:00:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:57,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 19:00:57,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1084, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 19:00:57,747 INFO L87 Difference]: Start difference. First operand 408 states and 607 transitions. Second operand has 27 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 19:01:09,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:09,428 INFO L93 Difference]: Finished difference Result 765 states and 1176 transitions. [2023-12-02 19:01:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 19:01:09,429 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 71 [2023-12-02 19:01:09,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:09,431 INFO L225 Difference]: With dead ends: 765 [2023-12-02 19:01:09,432 INFO L226 Difference]: Without dead ends: 439 [2023-12-02 19:01:09,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 183 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 77.8s TimeCoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 19:01:09,433 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 77 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:09,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2547 Invalid, 2234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 19:01:09,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-02 19:01:09,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 385. [2023-12-02 19:01:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 276 states have (on average 1.4492753623188406) internal successors, (400), 277 states have internal predecessors, (400), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-02 19:01:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 571 transitions. [2023-12-02 19:01:09,583 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 571 transitions. Word has length 71 [2023-12-02 19:01:09,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:09,584 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 571 transitions. [2023-12-02 19:01:09,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 19:01:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 571 transitions. [2023-12-02 19:01:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 19:01:09,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:09,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:09,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 19:01:09,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:09,787 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:01:09,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:09,787 INFO L85 PathProgramCache]: Analyzing trace with hash 933766043, now seen corresponding path program 1 times [2023-12-02 19:01:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:09,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275594684] [2023-12-02 19:01:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:01:09,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275594684] [2023-12-02 19:01:09,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275594684] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992076311] [2023-12-02 19:01:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:09,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:09,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:09,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:09,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a337f5-e65c-470e-90b3-0eea6eba1b22/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 19:01:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:10,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:01:10,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 19:01:10,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:01:10,302 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 19:01:10,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992076311] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:01:10,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [767816630] [2023-12-02 19:01:10,305 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 19:01:10,305 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:01:10,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:01:10,306 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:01:10,306 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs