./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2 --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 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:40:35,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:40:35,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:40:35,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:40:35,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:40:35,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:40:35,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:40:35,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:40:35,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:40:35,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:40:35,219 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:40:35,220 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:40:35,220 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:40:35,221 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:40:35,223 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:40:35,224 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:40:35,226 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:40:35,226 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:40:35,227 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:40:35,227 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:40:35,231 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:40:35,233 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:40:35,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:40:35,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:40:35,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:40:35,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:40:35,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:40:35,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:40:35,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:40:35,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:40:35,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:40:35,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:40:35,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:40:35,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:40:35,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:40:35,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:40:35,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:40:35,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:40:35,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:35,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:40:35,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:40:35,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:40:35,244 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:40:35,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:40:35,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:40:35,245 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:40:35,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:40:35,246 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_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 [2024-11-02 12:40:35,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:40:35,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:40:35,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:40:35,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:40:35,649 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:40:35,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c Unable to find full path for "g++" [2024-11-02 12:40:37,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:40:38,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:40:38,291 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2024-11-02 12:40:38,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/data/416800acc/a09c51b795dd4d0390e3c27330b4419b/FLAG3d9de42ca [2024-11-02 12:40:38,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/data/416800acc/a09c51b795dd4d0390e3c27330b4419b [2024-11-02 12:40:38,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:40:38,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:40:38,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:38,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:40:38,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:40:38,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:38" (1/1) ... [2024-11-02 12:40:38,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74172f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:38, skipping insertion in model container [2024-11-02 12:40:38,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:38" (1/1) ... [2024-11-02 12:40:38,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:39,084 WARN L251 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_d38a6f32-d2ab-4fa2-aded-b151034dc373/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2024-11-02 12:40:39,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:39,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:39,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-02 12:40:39,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [167] [2024-11-02 12:40:39,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [467] [2024-11-02 12:40:39,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [505] [2024-11-02 12:40:39,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [797] [2024-11-02 12:40:39,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1864] [2024-11-02 12:40:39,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1873] [2024-11-02 12:40:39,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1890] [2024-11-02 12:40:39,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2106] [2024-11-02 12:40:39,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2125] [2024-11-02 12:40:39,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2491] [2024-11-02 12:40:39,363 WARN L251 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_d38a6f32-d2ab-4fa2-aded-b151034dc373/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2024-11-02 12:40:39,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:39,480 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:39,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39 WrapperNode [2024-11-02 12:40:39,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:39,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:39,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:39,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:39,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,601 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1002 [2024-11-02 12:40:39,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:39,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:39,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:39,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:39,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:39,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:39,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:39,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:39,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:39,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:39,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:39,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:40:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:40:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:40:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:40:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:40:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:40:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:40:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:40:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:40:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:40:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:40:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:40:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:40:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:40:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:40:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:40:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:40:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:40:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:40:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:40:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:40:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:40:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:40:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:40:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:40:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:40:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:40:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:40:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:40:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:40:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:40:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:40:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:40:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:39,995 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:39,998 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:41,127 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-11-02 12:40:41,127 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:40:41,845 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:40:41,845 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:40:41,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:41 BoogieIcfgContainer [2024-11-02 12:40:41,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:40:41,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:40:41,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:40:41,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:40:41,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:40:38" (1/3) ... [2024-11-02 12:40:41,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68690a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:41, skipping insertion in model container [2024-11-02 12:40:41,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (2/3) ... [2024-11-02 12:40:41,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68690a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:41, skipping insertion in model container [2024-11-02 12:40:41,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:41" (3/3) ... [2024-11-02 12:40:41,854 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2024-11-02 12:40:41,874 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:40:41,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:40:41,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:40:41,969 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d0e663, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:40:41,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:40:41,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-02 12:40:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-02 12:40:41,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:42,005 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:42,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:42,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1402745448, now seen corresponding path program 1 times [2024-11-02 12:40:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:42,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375056580] [2024-11-02 12:40:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:42,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:40:42,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375056580] [2024-11-02 12:40:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375056580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:42,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:42,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:40:42,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759567679] [2024-11-02 12:40:42,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:42,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:40:42,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:42,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:40:42,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:40:42,521 INFO L87 Difference]: Start difference. First operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:40:42,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:42,663 INFO L93 Difference]: Finished difference Result 217 states and 290 transitions. [2024-11-02 12:40:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:40:42,667 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2024-11-02 12:40:42,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:42,677 INFO L225 Difference]: With dead ends: 217 [2024-11-02 12:40:42,678 INFO L226 Difference]: Without dead ends: 147 [2024-11-02 12:40:42,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:40:42,686 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:42,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:40:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-02 12:40:42,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-02 12:40:42,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 89 states have internal predecessors, (116), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-02 12:40:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 199 transitions. [2024-11-02 12:40:42,754 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 199 transitions. Word has length 64 [2024-11-02 12:40:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:42,757 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 199 transitions. [2024-11-02 12:40:42,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:40:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 199 transitions. [2024-11-02 12:40:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-02 12:40:42,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:42,765 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:42,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:40:42,765 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:42,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:42,766 INFO L85 PathProgramCache]: Analyzing trace with hash -128648975, now seen corresponding path program 1 times [2024-11-02 12:40:42,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:42,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968867299] [2024-11-02 12:40:42,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:42,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:42,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:40:42,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968867299] [2024-11-02 12:40:42,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968867299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:42,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:42,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:40:42,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182326946] [2024-11-02 12:40:42,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:43,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:40:43,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:43,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:40:43,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:43,003 INFO L87 Difference]: Start difference. First operand 147 states and 199 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:40:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:43,134 INFO L93 Difference]: Finished difference Result 213 states and 278 transitions. [2024-11-02 12:40:43,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:40:43,138 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2024-11-02 12:40:43,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:43,141 INFO L225 Difference]: With dead ends: 213 [2024-11-02 12:40:43,141 INFO L226 Difference]: Without dead ends: 149 [2024-11-02 12:40:43,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:43,144 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:43,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:40:43,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-02 12:40:43,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-02 12:40:43,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-02 12:40:43,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2024-11-02 12:40:43,169 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 65 [2024-11-02 12:40:43,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:43,170 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2024-11-02 12:40:43,170 INFO L472 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:40:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2024-11-02 12:40:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-02 12:40:43,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:43,176 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:43,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:40:43,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:43,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1193056365, now seen corresponding path program 1 times [2024-11-02 12:40:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237118492] [2024-11-02 12:40:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:40:43,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:43,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237118492] [2024-11-02 12:40:43,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237118492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:43,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:43,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:40:43,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243751398] [2024-11-02 12:40:43,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:43,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:40:43,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:43,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:40:43,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:43,431 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:40:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:43,603 INFO L93 Difference]: Finished difference Result 328 states and 461 transitions. [2024-11-02 12:40:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:40:43,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2024-11-02 12:40:43,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:43,607 INFO L225 Difference]: With dead ends: 328 [2024-11-02 12:40:43,610 INFO L226 Difference]: Without dead ends: 197 [2024-11-02 12:40:43,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:43,613 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 57 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:43,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:40:43,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-02 12:40:43,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2024-11-02 12:40:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 122 states have (on average 1.401639344262295) internal successors, (171), 123 states have internal predecessors, (171), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-02 12:40:43,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 276 transitions. [2024-11-02 12:40:43,634 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 276 transitions. Word has length 70 [2024-11-02 12:40:43,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:43,634 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 276 transitions. [2024-11-02 12:40:43,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:40:43,635 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 276 transitions. [2024-11-02 12:40:43,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-02 12:40:43,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:43,638 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:43,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:40:43,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:43,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash 199388266, now seen corresponding path program 1 times [2024-11-02 12:40:43,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:43,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181118900] [2024-11-02 12:40:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:43,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:40:43,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:43,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181118900] [2024-11-02 12:40:43,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181118900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:40:43,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311459203] [2024-11-02 12:40:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:43,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:40:43,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:43,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:40:43,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d38a6f32-d2ab-4fa2-aded-b151034dc373/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:40:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:44,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:44,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:40:44,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:40:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:40:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311459203] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:40:44,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [455794417] [2024-11-02 12:40:44,589 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-02 12:40:44,590 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:40:44,594 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:40:44,600 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:40:44,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs