./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91 --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 1d8908adfa5a1758f016a2fa64af2c05db2b3cc5d1fb9ac5b8aa70e5689b8434 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:21:16,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:21:16,976 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:21:16,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:21:16,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:21:17,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:21:17,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:21:17,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:21:17,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:21:17,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:21:17,028 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:21:17,028 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:21:17,029 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:21:17,030 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:21:17,031 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:21:17,032 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:21:17,032 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:21:17,033 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:21:17,034 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:21:17,035 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:21:17,036 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:21:17,041 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:21:17,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:21:17,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:21:17,043 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:21:17,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:21:17,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:21:17,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:21:17,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:21:17,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:21:17,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:21:17,048 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:21:17,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:21:17,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:21:17,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:21:17,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:21:17,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:21:17,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:17,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:21:17,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:21:17,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:21:17,052 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:21:17,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:21:17,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:21:17,054 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:21:17,054 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:21:17,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:21:17,055 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_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d8908adfa5a1758f016a2fa64af2c05db2b3cc5d1fb9ac5b8aa70e5689b8434 [2023-11-24 23:21:17,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:21:17,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:21:17,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:21:17,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:21:17,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:21:17,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/product-lines/email_spec7_productSimulator.cil.c [2023-11-24 23:21:20,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:21:20,950 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:21:20,954 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/sv-benchmarks/c/product-lines/email_spec7_productSimulator.cil.c [2023-11-24 23:21:20,995 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/data/fcd38078c/0083c8ff96424bc5b5be7c2b2204eba2/FLAGc16e8c9f9 [2023-11-24 23:21:21,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/data/fcd38078c/0083c8ff96424bc5b5be7c2b2204eba2 [2023-11-24 23:21:21,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:21:21,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:21:21,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:21,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:21:21,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:21:21,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:21" (1/1) ... [2023-11-24 23:21:21,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a9d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:21, skipping insertion in model container [2023-11-24 23:21:21,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:21" (1/1) ... [2023-11-24 23:21:21,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:21:21,811 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_d8038224-6307-4646-b4f1-63b1f5eb6283/sv-benchmarks/c/product-lines/email_spec7_productSimulator.cil.c[72622,72635] [2023-11-24 23:21:21,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:21,841 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:21:21,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2023-11-24 23:21:21,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [642] [2023-11-24 23:21:21,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1041] [2023-11-24 23:21:21,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [1416] [2023-11-24 23:21:21,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1435] [2023-11-24 23:21:21,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1639] [2023-11-24 23:21:21,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2699] [2023-11-24 23:21:21,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2965] [2023-11-24 23:21:21,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3072] [2023-11-24 23:21:21,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3089] [2023-11-24 23:21:21,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3455] [2023-11-24 23:21:21,992 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_d8038224-6307-4646-b4f1-63b1f5eb6283/sv-benchmarks/c/product-lines/email_spec7_productSimulator.cil.c[72622,72635] [2023-11-24 23:21:21,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:22,050 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:22,056 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:21:22,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22 WrapperNode [2023-11-24 23:21:22,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:22,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:22,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:21:22,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:21:22,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,184 INFO L138 Inliner]: procedures = 151, calls = 280, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1325 [2023-11-24 23:21:22,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:22,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:21:22,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:21:22,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:21:22,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:21:22,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:21:22,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:21:22,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:21:22,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (1/1) ... [2023-11-24 23:21:22,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:22,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:22,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:21:22,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:21:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-24 23:21:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-24 23:21:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2023-11-24 23:21:22,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2023-11-24 23:21:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2023-11-24 23:21:22,450 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2023-11-24 23:21:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-24 23:21:22,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-24 23:21:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-24 23:21:22,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-24 23:21:22,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-24 23:21:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-24 23:21:22,453 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-24 23:21:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-24 23:21:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2023-11-24 23:21:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2023-11-24 23:21:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-24 23:21:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-24 23:21:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2023-11-24 23:21:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2023-11-24 23:21:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-24 23:21:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-24 23:21:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-24 23:21:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-24 23:21:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-24 23:21:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-24 23:21:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2023-11-24 23:21:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2023-11-24 23:21:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2023-11-24 23:21:22,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2023-11-24 23:21:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-24 23:21:22,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-24 23:21:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-24 23:21:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-24 23:21:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-24 23:21:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-24 23:21:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-24 23:21:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2023-11-24 23:21:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2023-11-24 23:21:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-24 23:21:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-24 23:21:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-24 23:21:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-24 23:21:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-24 23:21:22,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-24 23:21:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2023-11-24 23:21:22,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2023-11-24 23:21:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:21:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-24 23:21:22,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-24 23:21:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-24 23:21:22,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-24 23:21:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2023-11-24 23:21:22,466 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2023-11-24 23:21:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2023-11-24 23:21:22,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2023-11-24 23:21:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2023-11-24 23:21:22,467 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2023-11-24 23:21:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-24 23:21:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-24 23:21:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-24 23:21:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-24 23:21:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-24 23:21:22,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-24 23:21:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-24 23:21:22,470 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-24 23:21:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-24 23:21:22,470 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-24 23:21:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-24 23:21:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-24 23:21:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-24 23:21:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-24 23:21:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2023-11-24 23:21:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2023-11-24 23:21:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2023-11-24 23:21:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2023-11-24 23:21:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-24 23:21:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-24 23:21:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-24 23:21:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-24 23:21:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:21:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-24 23:21:22,474 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-24 23:21:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2023-11-24 23:21:22,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2023-11-24 23:21:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-11-24 23:21:22,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-11-24 23:21:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-24 23:21:22,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-24 23:21:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:21:22,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:21:22,771 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:21:22,775 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:21:24,202 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:21:25,022 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:21:25,023 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:21:25,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:25 BoogieIcfgContainer [2023-11-24 23:21:25,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:21:25,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:21:25,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:21:25,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:21:25,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:21:21" (1/3) ... [2023-11-24 23:21:25,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcd7879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:21:25, skipping insertion in model container [2023-11-24 23:21:25,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:22" (2/3) ... [2023-11-24 23:21:25,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcd7879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:21:25, skipping insertion in model container [2023-11-24 23:21:25,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:25" (3/3) ... [2023-11-24 23:21:25,034 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_productSimulator.cil.c [2023-11-24 23:21:25,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:21:25,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:21:25,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:21:25,124 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;@64d3065c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:21:25,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:21:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 223 states have (on average 1.3318385650224216) internal successors, (297), 243 states have internal predecessors, (297), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-11-24 23:21:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-24 23:21:25,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:25,153 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:25,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:25,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash 118678989, now seen corresponding path program 1 times [2023-11-24 23:21:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:25,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656739667] [2023-11-24 23:21:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:21:26,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656739667] [2023-11-24 23:21:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656739667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:26,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:26,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940558914] [2023-11-24 23:21:26,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:26,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:21:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:26,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:21:26,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:21:26,071 INFO L87 Difference]: Start difference. First operand has 377 states, 223 states have (on average 1.3318385650224216) internal successors, (297), 243 states have internal predecessors, (297), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:21:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:26,418 INFO L93 Difference]: Finished difference Result 723 states and 993 transitions. [2023-11-24 23:21:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:21:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 110 [2023-11-24 23:21:26,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:26,449 INFO L225 Difference]: With dead ends: 723 [2023-11-24 23:21:26,449 INFO L226 Difference]: Without dead ends: 374 [2023-11-24 23:21:26,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:21:26,467 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:26,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1370 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:21:26,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-24 23:21:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-24 23:21:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 221 states have (on average 1.2895927601809956) internal successors, (285), 240 states have internal predecessors, (285), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-24 23:21:26,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 502 transitions. [2023-11-24 23:21:26,640 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 502 transitions. Word has length 110 [2023-11-24 23:21:26,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:26,642 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 502 transitions. [2023-11-24 23:21:26,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:21:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 502 transitions. [2023-11-24 23:21:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-24 23:21:26,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:26,655 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:26,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:21:26,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:26,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash -434122396, now seen corresponding path program 1 times [2023-11-24 23:21:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:26,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133899570] [2023-11-24 23:21:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:26,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:21:27,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:27,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133899570] [2023-11-24 23:21:27,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133899570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:27,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:27,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:27,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740009948] [2023-11-24 23:21:27,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:27,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:27,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:27,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:27,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:27,066 INFO L87 Difference]: Start difference. First operand 374 states and 502 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-24 23:21:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:27,276 INFO L93 Difference]: Finished difference Result 719 states and 973 transitions. [2023-11-24 23:21:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:27,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 121 [2023-11-24 23:21:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:27,282 INFO L225 Difference]: With dead ends: 719 [2023-11-24 23:21:27,283 INFO L226 Difference]: Without dead ends: 374 [2023-11-24 23:21:27,289 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 [2023-11-24 23:21:27,292 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 467 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:27,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 460 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-24 23:21:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-24 23:21:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 222 states have (on average 1.2747747747747749) internal successors, (283), 239 states have internal predecessors, (283), 107 states have call successors, (107), 44 states have call predecessors, (107), 44 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-11-24 23:21:27,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 496 transitions. [2023-11-24 23:21:27,354 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 496 transitions. Word has length 121 [2023-11-24 23:21:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:27,357 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 496 transitions. [2023-11-24 23:21:27,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-24 23:21:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 496 transitions. [2023-11-24 23:21:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-24 23:21:27,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:27,367 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:27,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:21:27,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:27,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash 594033967, now seen corresponding path program 1 times [2023-11-24 23:21:27,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:27,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249587496] [2023-11-24 23:21:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:27,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:21:27,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:27,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249587496] [2023-11-24 23:21:27,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249587496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:27,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:27,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:27,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135471235] [2023-11-24 23:21:27,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:27,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:27,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:27,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:27,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:27,545 INFO L87 Difference]: Start difference. First operand 374 states and 496 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:21:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:27,846 INFO L93 Difference]: Finished difference Result 1052 states and 1418 transitions. [2023-11-24 23:21:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:27,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 117 [2023-11-24 23:21:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:27,853 INFO L225 Difference]: With dead ends: 1052 [2023-11-24 23:21:27,853 INFO L226 Difference]: Without dead ends: 707 [2023-11-24 23:21:27,855 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 [2023-11-24 23:21:27,856 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 467 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:27,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 866 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:21:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-11-24 23:21:27,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 705. [2023-11-24 23:21:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 418 states have (on average 1.2727272727272727) internal successors, (532), 448 states have internal predecessors, (532), 199 states have call successors, (199), 87 states have call predecessors, (199), 87 states have return successors, (210), 196 states have call predecessors, (210), 197 states have call successors, (210) [2023-11-24 23:21:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 941 transitions. [2023-11-24 23:21:27,914 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 941 transitions. Word has length 117 [2023-11-24 23:21:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:27,915 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 941 transitions. [2023-11-24 23:21:27,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:21:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 941 transitions. [2023-11-24 23:21:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-24 23:21:27,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:27,920 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:27,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:21:27,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:27,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2086481291, now seen corresponding path program 1 times [2023-11-24 23:21:27,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:27,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058451741] [2023-11-24 23:21:27,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:27,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:21:28,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:28,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058451741] [2023-11-24 23:21:28,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058451741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:28,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:28,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:28,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396454742] [2023-11-24 23:21:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:28,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:28,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:28,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:28,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:28,029 INFO L87 Difference]: Start difference. First operand 705 states and 941 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:21:28,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:28,178 INFO L93 Difference]: Finished difference Result 707 states and 942 transitions. [2023-11-24 23:21:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2023-11-24 23:21:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:28,182 INFO L225 Difference]: With dead ends: 707 [2023-11-24 23:21:28,182 INFO L226 Difference]: Without dead ends: 374 [2023-11-24 23:21:28,183 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 [2023-11-24 23:21:28,191 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 448 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:28,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 463 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-24 23:21:28,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-24 23:21:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 223 states have (on average 1.2556053811659194) internal successors, (280), 238 states have internal predecessors, (280), 105 states have call successors, (105), 45 states have call predecessors, (105), 45 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-24 23:21:28,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 489 transitions. [2023-11-24 23:21:28,225 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 489 transitions. Word has length 118 [2023-11-24 23:21:28,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:28,225 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 489 transitions. [2023-11-24 23:21:28,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-24 23:21:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 489 transitions. [2023-11-24 23:21:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-24 23:21:28,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:28,229 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:28,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:21:28,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:28,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash -593547678, now seen corresponding path program 1 times [2023-11-24 23:21:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:28,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803881065] [2023-11-24 23:21:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:28,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-24 23:21:28,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:28,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803881065] [2023-11-24 23:21:28,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803881065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:28,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:28,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:28,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278853707] [2023-11-24 23:21:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:28,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:28,379 INFO L87 Difference]: Start difference. First operand 374 states and 489 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-24 23:21:28,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:28,537 INFO L93 Difference]: Finished difference Result 709 states and 925 transitions. [2023-11-24 23:21:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:28,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 128 [2023-11-24 23:21:28,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:28,541 INFO L225 Difference]: With dead ends: 709 [2023-11-24 23:21:28,541 INFO L226 Difference]: Without dead ends: 377 [2023-11-24 23:21:28,543 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 [2023-11-24 23:21:28,544 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 431 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:28,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 448 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-24 23:21:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 371. [2023-11-24 23:21:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 223 states have (on average 1.2062780269058295) internal successors, (269), 233 states have internal predecessors, (269), 102 states have call successors, (102), 45 states have call predecessors, (102), 45 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-24 23:21:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 472 transitions. [2023-11-24 23:21:28,579 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 472 transitions. Word has length 128 [2023-11-24 23:21:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:28,580 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 472 transitions. [2023-11-24 23:21:28,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-24 23:21:28,581 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 472 transitions. [2023-11-24 23:21:28,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-24 23:21:28,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:28,584 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:28,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:21:28,584 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:28,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:28,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1105561758, now seen corresponding path program 1 times [2023-11-24 23:21:28,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:28,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135034499] [2023-11-24 23:21:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:28,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 23:21:28,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:28,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135034499] [2023-11-24 23:21:28,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135034499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:28,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:28,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:28,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247575197] [2023-11-24 23:21:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:28,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:28,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:28,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:28,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:28,762 INFO L87 Difference]: Start difference. First operand 371 states and 472 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-24 23:21:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:28,924 INFO L93 Difference]: Finished difference Result 585 states and 738 transitions. [2023-11-24 23:21:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:28,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 135 [2023-11-24 23:21:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:28,928 INFO L225 Difference]: With dead ends: 585 [2023-11-24 23:21:28,928 INFO L226 Difference]: Without dead ends: 373 [2023-11-24 23:21:28,952 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 [2023-11-24 23:21:28,953 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 0 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:28,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 837 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:28,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-24 23:21:28,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2023-11-24 23:21:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 225 states have (on average 1.2044444444444444) internal successors, (271), 235 states have internal predecessors, (271), 102 states have call successors, (102), 45 states have call predecessors, (102), 45 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-24 23:21:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 474 transitions. [2023-11-24 23:21:28,985 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 474 transitions. Word has length 135 [2023-11-24 23:21:28,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:28,986 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 474 transitions. [2023-11-24 23:21:28,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-24 23:21:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 474 transitions. [2023-11-24 23:21:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-24 23:21:28,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:28,990 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:28,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:21:28,990 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:28,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:28,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1351862937, now seen corresponding path program 1 times [2023-11-24 23:21:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:28,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270758925] [2023-11-24 23:21:28,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:28,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 23:21:29,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:29,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270758925] [2023-11-24 23:21:29,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270758925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:29,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:29,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:29,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613846319] [2023-11-24 23:21:29,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:29,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:29,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:29,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:29,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:29,151 INFO L87 Difference]: Start difference. First operand 373 states and 474 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-24 23:21:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:29,327 INFO L93 Difference]: Finished difference Result 744 states and 971 transitions. [2023-11-24 23:21:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:29,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 140 [2023-11-24 23:21:29,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:29,332 INFO L225 Difference]: With dead ends: 744 [2023-11-24 23:21:29,332 INFO L226 Difference]: Without dead ends: 440 [2023-11-24 23:21:29,333 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 [2023-11-24 23:21:29,334 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 76 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:29,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 841 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-24 23:21:29,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 435. [2023-11-24 23:21:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 273 states have (on average 1.249084249084249) internal successors, (341), 283 states have internal predecessors, (341), 116 states have call successors, (116), 45 states have call predecessors, (116), 45 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-24 23:21:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 572 transitions. [2023-11-24 23:21:29,373 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 572 transitions. Word has length 140 [2023-11-24 23:21:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:29,374 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 572 transitions. [2023-11-24 23:21:29,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-24 23:21:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 572 transitions. [2023-11-24 23:21:29,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-24 23:21:29,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:29,378 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:29,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:21:29,378 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__DecryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:29,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:29,379 INFO L85 PathProgramCache]: Analyzing trace with hash -775648917, now seen corresponding path program 1 times [2023-11-24 23:21:29,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:29,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538514310] [2023-11-24 23:21:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:29,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 23:21:29,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:29,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538514310] [2023-11-24 23:21:29,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538514310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:21:29,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730566400] [2023-11-24 23:21:29,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:21:29,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:29,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:21:29,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8038224-6307-4646-b4f1-63b1f5eb6283/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:21:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:30,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 1399 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:21:30,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:21:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 23:21:30,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:21:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 23:21:30,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730566400] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:21:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [149786990] [2023-11-24 23:21:30,325 INFO L159 IcfgInterpreter]: Started Sifa with 116 locations of interest [2023-11-24 23:21:30,326 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:21:30,330 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:21:30,337 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:21:30,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs