./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5 --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 13f72d33ad8dc1f394ba6b36d4d28c51e0dd0afffaf225b08b0adb7c8b4dde17 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:00:29,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:00:30,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:00:30,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:00:30,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:00:30,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:00:30,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:00:30,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:00:30,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:00:30,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:00:30,178 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:00:30,179 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:00:30,180 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:00:30,184 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:00:30,185 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:00:30,186 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:00:30,186 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:00:30,187 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:00:30,187 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:00:30,188 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:00:30,189 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:00:30,189 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:00:30,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:00:30,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:00:30,192 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:00:30,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:00:30,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:00:30,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:00:30,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:00:30,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:00:30,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:00:30,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:00:30,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:00:30,198 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:00:30,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:00:30,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:00:30,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:00:30,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:00:30,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:00:30,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:00:30,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:00:30,201 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:00:30,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:00:30,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:00:30,202 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:00:30,203 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:00:30,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:00:30,203 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_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13f72d33ad8dc1f394ba6b36d4d28c51e0dd0afffaf225b08b0adb7c8b4dde17 [2023-11-21 19:00:30,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:00:30,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:00:30,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:00:30,502 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:00:30,503 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:00:30,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/product-lines/email_spec0_product21.cil.c [2023-11-21 19:00:33,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:00:34,039 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:00:34,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/sv-benchmarks/c/product-lines/email_spec0_product21.cil.c [2023-11-21 19:00:34,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/data/55b118d52/cd11ca863f334490a1024c0ace91a9a7/FLAG0d502a2db [2023-11-21 19:00:34,096 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/data/55b118d52/cd11ca863f334490a1024c0ace91a9a7 [2023-11-21 19:00:34,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:00:34,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:00:34,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:34,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:00:34,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:00:34,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:00:34" (1/1) ... [2023-11-21 19:00:34,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285acb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:34, skipping insertion in model container [2023-11-21 19:00:34,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:00:34" (1/1) ... [2023-11-21 19:00:34,196 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:00:34,722 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_ac8b5c0d-fe77-4762-9545-1368f06a1cce/sv-benchmarks/c/product-lines/email_spec0_product21.cil.c[44895,44908] [2023-11-21 19:00:34,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:34,903 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:00:34,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-11-21 19:00:34,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1128] [2023-11-21 19:00:34,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1146] [2023-11-21 19:00:34,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1558] [2023-11-21 19:00:34,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1924] [2023-11-21 19:00:34,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1933] [2023-11-21 19:00:34,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1982] [2023-11-21 19:00:34,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2211] [2023-11-21 19:00:34,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2232] [2023-11-21 19:00:34,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2526] [2023-11-21 19:00:34,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2831] [2023-11-21 19:00:35,021 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_ac8b5c0d-fe77-4762-9545-1368f06a1cce/sv-benchmarks/c/product-lines/email_spec0_product21.cil.c[44895,44908] [2023-11-21 19:00:35,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:35,133 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:00:35,141 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:00:35,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35 WrapperNode [2023-11-21 19:00:35,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:35,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:35,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:00:35,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:00:35,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,316 INFO L138 Inliner]: procedures = 128, calls = 214, calls flagged for inlining = 56, calls inlined = 53, statements flattened = 1059 [2023-11-21 19:00:35,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:35,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:00:35,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:00:35,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:00:35,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:00:35,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:00:35,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:00:35,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:00:35,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (1/1) ... [2023-11-21 19:00:35,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:00:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:00:35,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:00:35,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:00:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-21 19:00:35,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-21 19:00:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-21 19:00:35,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-21 19:00:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-21 19:00:35,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-21 19:00:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-21 19:00:35,558 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-21 19:00:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-21 19:00:35,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-21 19:00:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-21 19:00:35,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-21 19:00:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-21 19:00:35,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-21 19:00:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-21 19:00:35,560 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-21 19:00:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-21 19:00:35,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-21 19:00:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-21 19:00:35,561 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-21 19:00:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 19:00:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-21 19:00:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-21 19:00:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:00:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-21 19:00:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-21 19:00:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-21 19:00:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-21 19:00:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-21 19:00:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-21 19:00:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-21 19:00:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-21 19:00:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-21 19:00:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-21 19:00:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-21 19:00:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-21 19:00:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-21 19:00:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-21 19:00:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-21 19:00:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-21 19:00:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-21 19:00:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-21 19:00:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:00:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-21 19:00:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-21 19:00:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-21 19:00:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-21 19:00:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:00:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:00:35,792 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:00:35,796 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:00:37,011 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:00:37,937 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:00:37,938 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:00:37,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:37 BoogieIcfgContainer [2023-11-21 19:00:37,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:00:37,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:00:37,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:00:37,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:00:37,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:00:34" (1/3) ... [2023-11-21 19:00:37,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b88ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:00:37, skipping insertion in model container [2023-11-21 19:00:37,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:35" (2/3) ... [2023-11-21 19:00:37,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b88ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:00:37, skipping insertion in model container [2023-11-21 19:00:37,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:37" (3/3) ... [2023-11-21 19:00:37,956 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2023-11-21 19:00:37,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:00:37,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:00:38,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:00:38,092 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;@5031b38b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:00:38,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:00:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 105 states have (on average 1.3238095238095238) internal successors, (139), 110 states have internal predecessors, (139), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-21 19:00:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-21 19:00:38,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:38,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:00:38,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:38,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash 735415551, now seen corresponding path program 1 times [2023-11-21 19:00:38,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:38,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245475892] [2023-11-21 19:00:38,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:38,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-21 19:00:38,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:38,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245475892] [2023-11-21 19:00:38,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245475892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:38,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:38,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:00:38,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325242936] [2023-11-21 19:00:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:38,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:00:38,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:38,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:00:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:00:38,791 INFO L87 Difference]: Start difference. First operand has 186 states, 105 states have (on average 1.3238095238095238) internal successors, (139), 110 states have internal predecessors, (139), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 19:00:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:38,949 INFO L93 Difference]: Finished difference Result 280 states and 377 transitions. [2023-11-21 19:00:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:00:38,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2023-11-21 19:00:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:38,967 INFO L225 Difference]: With dead ends: 280 [2023-11-21 19:00:38,968 INFO L226 Difference]: Without dead ends: 183 [2023-11-21 19:00:38,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:00:38,978 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:38,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:00:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-21 19:00:39,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-21 19:00:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 107 states have internal predecessors, (133), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-21 19:00:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 246 transitions. [2023-11-21 19:00:39,050 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 246 transitions. Word has length 88 [2023-11-21 19:00:39,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:39,053 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 246 transitions. [2023-11-21 19:00:39,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 19:00:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 246 transitions. [2023-11-21 19:00:39,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-21 19:00:39,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:39,061 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:00:39,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:00:39,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:39,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:39,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1585339391, now seen corresponding path program 1 times [2023-11-21 19:00:39,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:39,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490489777] [2023-11-21 19:00:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:39,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-21 19:00:39,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490489777] [2023-11-21 19:00:39,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490489777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:39,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:39,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:00:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106493650] [2023-11-21 19:00:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:39,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:00:39,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:39,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:00:39,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:39,426 INFO L87 Difference]: Start difference. First operand 183 states and 246 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 19:00:39,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:39,558 INFO L93 Difference]: Finished difference Result 276 states and 362 transitions. [2023-11-21 19:00:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:00:39,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 89 [2023-11-21 19:00:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:39,563 INFO L225 Difference]: With dead ends: 276 [2023-11-21 19:00:39,563 INFO L226 Difference]: Without dead ends: 185 [2023-11-21 19:00:39,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:39,567 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:39,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 419 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:00:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-21 19:00:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-21 19:00:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 109 states have internal predecessors, (135), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-21 19:00:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 248 transitions. [2023-11-21 19:00:39,594 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 248 transitions. Word has length 89 [2023-11-21 19:00:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:39,595 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 248 transitions. [2023-11-21 19:00:39,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 19:00:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 248 transitions. [2023-11-21 19:00:39,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-21 19:00:39,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:39,600 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:00:39,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:00:39,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:39,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:39,601 INFO L85 PathProgramCache]: Analyzing trace with hash 386141275, now seen corresponding path program 1 times [2023-11-21 19:00:39,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:39,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620842599] [2023-11-21 19:00:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:39,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-21 19:00:39,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:39,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620842599] [2023-11-21 19:00:39,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620842599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:39,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:00:39,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708876919] [2023-11-21 19:00:39,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:39,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:00:39,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:39,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:00:39,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:39,832 INFO L87 Difference]: Start difference. First operand 185 states and 248 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 19:00:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:39,978 INFO L93 Difference]: Finished difference Result 405 states and 563 transitions. [2023-11-21 19:00:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:00:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2023-11-21 19:00:39,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:39,984 INFO L225 Difference]: With dead ends: 405 [2023-11-21 19:00:39,987 INFO L226 Difference]: Without dead ends: 238 [2023-11-21 19:00:39,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:39,992 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 59 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:39,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 424 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:00:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-21 19:00:40,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 233. [2023-11-21 19:00:40,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 143 states have internal predecessors, (190), 71 states have call successors, (71), 22 states have call predecessors, (71), 22 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-21 19:00:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 331 transitions. [2023-11-21 19:00:40,047 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 331 transitions. Word has length 94 [2023-11-21 19:00:40,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:40,047 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 331 transitions. [2023-11-21 19:00:40,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 19:00:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 331 transitions. [2023-11-21 19:00:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-21 19:00:40,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:40,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:00:40,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:00:40,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:40,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:40,055 INFO L85 PathProgramCache]: Analyzing trace with hash 968827247, now seen corresponding path program 1 times [2023-11-21 19:00:40,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577124154] [2023-11-21 19:00:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:40,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 19:00:40,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577124154] [2023-11-21 19:00:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577124154] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:00:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25650146] [2023-11-21 19:00:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:40,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:00:40,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:00:40,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:00:40,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8b5c0d-fe77-4762-9545-1368f06a1cce/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:00:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:40,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:00:40,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:00:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 19:00:40,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:00:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 19:00:41,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25650146] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:00:41,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1939425409] [2023-11-21 19:00:41,080 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2023-11-21 19:00:41,080 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:00:41,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:00:41,154 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:00:41,155 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:01:30,441 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-11-21 19:01:30,805 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs