./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:29:18,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:29:18,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 08:29:18,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:29:18,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:29:18,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:29:18,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:29:18,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:29:18,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:29:18,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:29:18,933 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:29:18,934 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:29:18,934 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:29:18,935 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:29:18,935 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:29:18,936 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:29:18,937 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:29:18,937 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:29:18,938 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:29:18,938 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:29:18,939 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:29:18,939 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:29:18,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:29:18,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:29:18,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:29:18,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:29:18,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:29:18,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:29:18,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:29:18,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:29:18,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:29:18,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:29:18,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:29:18,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:29:18,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:29:18,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:29:18,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:29:18,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:29:18,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:29:18,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:29:18,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:29:18,946 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:29:18,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:29:18,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:29:18,946 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:29:18,947 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:29:18,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:29:18,947 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_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 [2023-12-02 08:29:19,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:29:19,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:29:19,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:29:19,193 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:29:19,194 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:29:19,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2023-12-02 08:29:21,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:29:22,183 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:29:22,184 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2023-12-02 08:29:22,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/data/9532d8a21/a7fd1e65f89744dda49e5b1157d1a9ef/FLAG0cf5563cb [2023-12-02 08:29:22,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/data/9532d8a21/a7fd1e65f89744dda49e5b1157d1a9ef [2023-12-02 08:29:22,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:29:22,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:29:22,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:29:22,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:29:22,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:29:22,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:22,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d1ead7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22, skipping insertion in model container [2023-12-02 08:29:22,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:22,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:29:22,775 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_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2023-12-02 08:29:22,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:29:22,793 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:29:22,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-12-02 08:29:22,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1128] [2023-12-02 08:29:22,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1170] [2023-12-02 08:29:22,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1456] [2023-12-02 08:29:22,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1562] [2023-12-02 08:29:22,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1579] [2023-12-02 08:29:22,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1617] [2023-12-02 08:29:22,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1983] [2023-12-02 08:29:22,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2208] [2023-12-02 08:29:22,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2486] [2023-12-02 08:29:22,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2889] [2023-12-02 08:29:22,885 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_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2023-12-02 08:29:22,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:29:22,912 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:29:22,919 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:29:22,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22 WrapperNode [2023-12-02 08:29:22,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:29:22,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:29:22,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:29:22,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:29:22,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:22,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,021 INFO L138 Inliner]: procedures = 125, calls = 205, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 913 [2023-12-02 08:29:23,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:29:23,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:29:23,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:29:23,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:29:23,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:29:23,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:29:23,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:29:23,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:29:23,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (1/1) ... [2023-12-02 08:29:23,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:29:23,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:23,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:29:23,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:29:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 08:29:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 08:29:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 08:29:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 08:29:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 08:29:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 08:29:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 08:29:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 08:29:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 08:29:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 08:29:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 08:29:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 08:29:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 08:29:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 08:29:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 08:29:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 08:29:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 08:29:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 08:29:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 08:29:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 08:29:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 08:29:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:29:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 08:29:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 08:29:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 08:29:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 08:29:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 08:29:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 08:29:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 08:29:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 08:29:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 08:29:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 08:29:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 08:29:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 08:29:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 08:29:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 08:29:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 08:29:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 08:29:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 08:29:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 08:29:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:29:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 08:29:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 08:29:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 08:29:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 08:29:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:29:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:29:23,341 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:29:23,344 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:29:24,031 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:29:24,534 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:29:24,534 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:29:24,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:24 BoogieIcfgContainer [2023-12-02 08:29:24,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:29:24,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:29:24,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:29:24,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:29:24,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:29:22" (1/3) ... [2023-12-02 08:29:24,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e42a8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:24, skipping insertion in model container [2023-12-02 08:29:24,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:22" (2/3) ... [2023-12-02 08:29:24,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e42a8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:24, skipping insertion in model container [2023-12-02 08:29:24,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:24" (3/3) ... [2023-12-02 08:29:24,546 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.c [2023-12-02 08:29:24,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:29:24,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:29:24,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:29:24,630 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;@36215c93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:29:24,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:29:24,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 08:29:24,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 08:29:24,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:24,649 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:24,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:24,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash 539584511, now seen corresponding path program 1 times [2023-12-02 08:29:24,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:24,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740180087] [2023-12-02 08:29:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:24,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740180087] [2023-12-02 08:29:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740180087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:24,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:24,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:29:24,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823511015] [2023-12-02 08:29:24,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:24,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 08:29:24,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:25,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 08:29:25,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:29:25,023 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 08:29:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:25,132 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2023-12-02 08:29:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 08:29:25,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2023-12-02 08:29:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:25,145 INFO L225 Difference]: With dead ends: 254 [2023-12-02 08:29:25,146 INFO L226 Difference]: Without dead ends: 170 [2023-12-02 08:29:25,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:29:25,153 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:25,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:29:25,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-12-02 08:29:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2023-12-02 08:29:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-02 08:29:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2023-12-02 08:29:25,205 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2023-12-02 08:29:25,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:25,207 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2023-12-02 08:29:25,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 08:29:25,208 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2023-12-02 08:29:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 08:29:25,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:25,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:25,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:29:25,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:25,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1186794859, now seen corresponding path program 1 times [2023-12-02 08:29:25,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:25,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457661657] [2023-12-02 08:29:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:25,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:25,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457661657] [2023-12-02 08:29:25,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457661657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:25,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:25,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:29:25,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056324972] [2023-12-02 08:29:25,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:25,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:25,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:25,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:25,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:29:25,397 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 08:29:25,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:25,516 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2023-12-02 08:29:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:25,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2023-12-02 08:29:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:25,520 INFO L225 Difference]: With dead ends: 250 [2023-12-02 08:29:25,520 INFO L226 Difference]: Without dead ends: 172 [2023-12-02 08:29:25,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:29:25,524 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:25,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:29:25,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-02 08:29:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-12-02 08:29:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-02 08:29:25,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2023-12-02 08:29:25,547 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2023-12-02 08:29:25,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:25,547 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2023-12-02 08:29:25,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 08:29:25,548 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2023-12-02 08:29:25,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 08:29:25,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:25,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:25,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 08:29:25,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:25,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2135343553, now seen corresponding path program 1 times [2023-12-02 08:29:25,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:25,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902347554] [2023-12-02 08:29:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:25,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:25,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902347554] [2023-12-02 08:29:25,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902347554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:25,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:25,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:29:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492168672] [2023-12-02 08:29:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:25,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:25,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:25,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:25,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:29:25,671 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 08:29:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:25,775 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2023-12-02 08:29:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:25,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2023-12-02 08:29:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:25,779 INFO L225 Difference]: With dead ends: 379 [2023-12-02 08:29:25,780 INFO L226 Difference]: Without dead ends: 225 [2023-12-02 08:29:25,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:29:25,782 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 59 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:25,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 403 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:29:25,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-02 08:29:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2023-12-02 08:29:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 08:29:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2023-12-02 08:29:25,811 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2023-12-02 08:29:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:25,811 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2023-12-02 08:29:25,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 08:29:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2023-12-02 08:29:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 08:29:25,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:25,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:25,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 08:29:25,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:25,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:25,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1752020959, now seen corresponding path program 1 times [2023-12-02 08:29:25,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:25,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956363405] [2023-12-02 08:29:25,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:25,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:25,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:25,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956363405] [2023-12-02 08:29:25,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956363405] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:25,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548842400] [2023-12-02 08:29:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:25,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:25,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:25,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:25,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:29:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:26,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:29:26,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:26,361 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:26,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:29:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:26,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548842400] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:29:26,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [359658818] [2023-12-02 08:29:26,449 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 08:29:26,450 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:29:26,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:29:26,459 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:29:26,460 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:30:05,300 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 08:30:05,608 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 08:30:05,780 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:31:06,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [359658818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:06,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:31:06,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 08:31:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189029249] [2023-12-02 08:31:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:06,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 08:31:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 08:31:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 08:31:06,784 INFO L87 Difference]: Start difference. First operand 220 states and 314 transitions. Second operand has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 08:31:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:21,436 INFO L93 Difference]: Finished difference Result 487 states and 728 transitions. [2023-12-02 08:31:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 08:31:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2023-12-02 08:31:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:21,440 INFO L225 Difference]: With dead ends: 487 [2023-12-02 08:31:21,440 INFO L226 Difference]: Without dead ends: 285 [2023-12-02 08:31:21,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 64.2s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 08:31:21,442 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 86 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:21,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2907 Invalid, 2557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-12-02 08:31:21,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-02 08:31:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 243. [2023-12-02 08:31:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 158 states have internal predecessors, (216), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 08:31:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 347 transitions. [2023-12-02 08:31:21,513 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 347 transitions. Word has length 70 [2023-12-02 08:31:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:21,513 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 347 transitions. [2023-12-02 08:31:21,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 08:31:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 347 transitions. [2023-12-02 08:31:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 08:31:21,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:21,516 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:21,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:31:21,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:31:21,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:31:21,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 817773062, now seen corresponding path program 1 times [2023-12-02 08:31:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:21,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968237075] [2023-12-02 08:31:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:31:21,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:21,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968237075] [2023-12-02 08:31:21,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968237075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:21,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:21,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:31:21,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664395413] [2023-12-02 08:31:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:21,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:31:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:31:21,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:31:21,795 INFO L87 Difference]: Start difference. First operand 243 states and 347 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:31:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:22,004 INFO L93 Difference]: Finished difference Result 589 states and 874 transitions. [2023-12-02 08:31:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:31:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2023-12-02 08:31:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:22,008 INFO L225 Difference]: With dead ends: 589 [2023-12-02 08:31:22,008 INFO L226 Difference]: Without dead ends: 370 [2023-12-02 08:31:22,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:31:22,010 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 57 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:22,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 408 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:31:22,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-02 08:31:22,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 365. [2023-12-02 08:31:22,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 245 states have (on average 1.453061224489796) internal successors, (356), 249 states have internal predecessors, (356), 97 states have call successors, (97), 22 states have call predecessors, (97), 22 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-02 08:31:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 549 transitions. [2023-12-02 08:31:22,130 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 549 transitions. Word has length 75 [2023-12-02 08:31:22,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:22,131 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 549 transitions. [2023-12-02 08:31:22,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:31:22,131 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 549 transitions. [2023-12-02 08:31:22,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 08:31:22,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:22,134 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:22,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 08:31:22,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:31:22,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:22,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1430397655, now seen corresponding path program 1 times [2023-12-02 08:31:22,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:22,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537817664] [2023-12-02 08:31:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:22,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:31:22,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537817664] [2023-12-02 08:31:22,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537817664] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:31:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257654560] [2023-12-02 08:31:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:22,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:31:22,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:31:22,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:31:22,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 08:31:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:22,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:31:22,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:31:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:31:22,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:31:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:31:22,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257654560] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:31:22,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [650715234] [2023-12-02 08:31:22,631 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 08:31:22,632 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:31:22,632 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:31:22,632 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:31:22,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:32:15,345 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 08:32:15,592 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 469 for LOIs [2023-12-02 08:32:17,699 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:32:37,924 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 469 DAG size of output: 469 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:32:47,395 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 499 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:33:46,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [650715234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:33:46,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:33:46,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 08:33:46,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078869174] [2023-12-02 08:33:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:33:46,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 08:33:46,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:33:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 08:33:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 08:33:46,584 INFO L87 Difference]: Start difference. First operand 365 states and 549 transitions. Second operand has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 08:34:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:34:01,895 INFO L93 Difference]: Finished difference Result 748 states and 1155 transitions. [2023-12-02 08:34:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 08:34:01,896 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2023-12-02 08:34:01,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:34:01,900 INFO L225 Difference]: With dead ends: 748 [2023-12-02 08:34:01,900 INFO L226 Difference]: Without dead ends: 446 [2023-12-02 08:34:01,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 92.1s TimeCoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 08:34:01,902 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 226 mSDsluCounter, 2468 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:34:01,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 2649 Invalid, 2602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-12-02 08:34:01,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-12-02 08:34:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 379. [2023-12-02 08:34:02,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 257 states have (on average 1.45136186770428) internal successors, (373), 261 states have internal predecessors, (373), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (97), 96 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-02 08:34:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 568 transitions. [2023-12-02 08:34:02,016 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 568 transitions. Word has length 76 [2023-12-02 08:34:02,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:34:02,017 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 568 transitions. [2023-12-02 08:34:02,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 08:34:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 568 transitions. [2023-12-02 08:34:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 08:34:02,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:02,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:02,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 08:34:02,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 08:34:02,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:02,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1848845646, now seen corresponding path program 1 times [2023-12-02 08:34:02,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:34:02,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855297412] [2023-12-02 08:34:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:02,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:34:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:34:02,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:34:02,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855297412] [2023-12-02 08:34:02,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855297412] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:34:02,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969373383] [2023-12-02 08:34:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:02,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:34:02,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:02,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:34:02,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 08:34:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:02,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:34:02,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:34:02,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:34:02,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969373383] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:34:02,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [300322546] [2023-12-02 08:34:02,718 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 08:34:02,719 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:34:02,719 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:34:02,720 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:34:02,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:35:56,532 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 08:35:56,753 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 536 for LOIs [2023-12-02 08:35:58,613 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 545 for LOIs [2023-12-02 08:36:00,917 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 460 for LOIs [2023-12-02 08:36:01,677 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 08:36:01,842 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:36:56,112 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 567 DAG size of output: 558 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:37:41,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [300322546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:37:41,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:37:41,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 08:37:41,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143552092] [2023-12-02 08:37:41,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:37:41,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 08:37:41,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:37:41,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 08:37:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 08:37:41,742 INFO L87 Difference]: Start difference. First operand 379 states and 568 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 08:38:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:38:05,065 INFO L93 Difference]: Finished difference Result 773 states and 1190 transitions. [2023-12-02 08:38:05,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 08:38:05,066 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2023-12-02 08:38:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:38:05,068 INFO L225 Difference]: With dead ends: 773 [2023-12-02 08:38:05,068 INFO L226 Difference]: Without dead ends: 471 [2023-12-02 08:38:05,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 103.4s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 08:38:05,070 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 60 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 3560 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-12-02 08:38:05,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3140 Invalid, 3570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3560 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2023-12-02 08:38:05,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-02 08:38:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 415. [2023-12-02 08:38:05,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 287 states have (on average 1.4459930313588851) internal successors, (415), 291 states have internal predecessors, (415), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 08:38:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 616 transitions. [2023-12-02 08:38:05,232 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 616 transitions. Word has length 79 [2023-12-02 08:38:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:38:05,233 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 616 transitions. [2023-12-02 08:38:05,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 08:38:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 616 transitions. [2023-12-02 08:38:05,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 08:38:05,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:38:05,235 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:38:05,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 08:38:05,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:38:05,435 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:38:05,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:38:05,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1620924958, now seen corresponding path program 1 times [2023-12-02 08:38:05,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:38:05,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542042373] [2023-12-02 08:38:05,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:38:05,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:38:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:38:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:38:05,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:38:05,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542042373] [2023-12-02 08:38:05,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542042373] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:38:05,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121978475] [2023-12-02 08:38:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:38:05,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:38:05,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:38:05,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:38:05,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 08:38:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:38:05,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:38:05,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:38:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:38:05,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:38:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:38:05,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121978475] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:38:05,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131202196] [2023-12-02 08:38:05,875 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 08:38:05,875 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:38:05,876 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:38:05,876 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:38:05,876 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:39:22,899 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 08:39:23,122 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 08:39:23,287 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:40:16,442 WARN L293 SmtUtils]: Spent 9.05s on a formula simplification. DAG size of input: 496 DAG size of output: 496 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:40:25,673 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 497 DAG size of output: 496 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:40:35,612 WARN L293 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 503 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:40:45,586 WARN L293 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 501 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:40:55,391 WARN L293 SmtUtils]: Spent 9.40s on a formula simplification. DAG size of input: 505 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:41:05,281 WARN L293 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 503 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:41:15,094 WARN L293 SmtUtils]: Spent 9.37s on a formula simplification. DAG size of input: 507 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:41:24,845 WARN L293 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 505 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:41:34,618 WARN L293 SmtUtils]: Spent 9.27s on a formula simplification. DAG size of input: 509 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:41:44,614 WARN L293 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 507 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:41:54,790 WARN L293 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 511 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:42:04,625 WARN L293 SmtUtils]: Spent 9.24s on a formula simplification. DAG size of input: 509 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:42:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1131202196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:42:08,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:42:08,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 08:42:08,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414287306] [2023-12-02 08:42:08,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:42:08,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 08:42:08,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:42:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 08:42:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 08:42:08,608 INFO L87 Difference]: Start difference. First operand 415 states and 616 transitions. Second operand has 32 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 08:42:27,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:42:27,410 INFO L93 Difference]: Finished difference Result 787 states and 1205 transitions. [2023-12-02 08:42:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 08:42:27,411 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2023-12-02 08:42:27,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:42:27,414 INFO L225 Difference]: With dead ends: 787 [2023-12-02 08:42:27,414 INFO L226 Difference]: Without dead ends: 485 [2023-12-02 08:42:27,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 168.4s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 08:42:27,416 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 123 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:42:27,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2999 Invalid, 2996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2023-12-02 08:42:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-12-02 08:42:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 435. [2023-12-02 08:42:27,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 307 states have (on average 1.4495114006514658) internal successors, (445), 311 states have internal predecessors, (445), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 08:42:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 646 transitions. [2023-12-02 08:42:27,610 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 646 transitions. Word has length 78 [2023-12-02 08:42:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:42:27,610 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 646 transitions. [2023-12-02 08:42:27,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 08:42:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 646 transitions. [2023-12-02 08:42:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 08:42:27,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:42:27,612 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:42:27,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 08:42:27,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:42:27,813 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:42:27,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:42:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1788985582, now seen corresponding path program 1 times [2023-12-02 08:42:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:42:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795126404] [2023-12-02 08:42:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:42:27,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:42:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:42:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:42:27,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:42:27,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795126404] [2023-12-02 08:42:27,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795126404] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:42:27,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362405942] [2023-12-02 08:42:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:42:27,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:42:27,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:42:27,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:42:27,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fdcbd0-fbfc-46a6-bf74-561ce00f0114/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 08:42:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:42:28,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:42:28,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:42:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:42:28,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:42:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:42:28,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362405942] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:42:28,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1818921660] [2023-12-02 08:42:28,288 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 08:42:28,289 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:42:28,289 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:42:28,289 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:42:28,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:43:15,837 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 08:43:16,065 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 469 for LOIs [2023-12-02 08:43:18,161 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2023-12-02 08:43:22,293 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2023-12-02 08:43:22,455 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2023-12-02 08:43:24,418 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 249 for LOIs [2023-12-02 08:43:28,561 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 231 for LOIs [2023-12-02 08:43:28,756 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 259 for LOIs [2023-12-02 08:43:30,162 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 231 for LOIs [2023-12-02 08:43:30,308 INFO L180 IcfgInterpreter]: Interpretation finished