./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX --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 25a137cac87a0e16e274f725e7bbd21e6c99dd9079b93c306fff086ae4fee1e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:44,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:44,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:53:44,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:44,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:44,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:44,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:44,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:44,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:44,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:44,632 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:44,634 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:44,634 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:44,639 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:44,640 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:44,641 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:44,641 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:44,641 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:44,642 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:44,643 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:44,643 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:44,644 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:44,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:44,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:44,645 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:53:44,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:44,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:53:44,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:44,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:44,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:44,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:44,649 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:53:44,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:44,649 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:44,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:44,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:44,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:44,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:44,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:44,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:44,651 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:44,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:44,652 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:44,652 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:44,653 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:44,653 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_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a137cac87a0e16e274f725e7bbd21e6c99dd9079b93c306fff086ae4fee1e1 [2023-11-12 00:53:44,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:44,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:44,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:44,988 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:44,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:44,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/product-lines/email_spec1_product28.cil.c [2023-11-12 00:53:48,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:48,550 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:48,550 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c [2023-11-12 00:53:48,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/data/3e0dc3cd8/5fe425b1a7184a32b29e1201e195aab0/FLAGb53b5aaaf [2023-11-12 00:53:48,600 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/data/3e0dc3cd8/5fe425b1a7184a32b29e1201e195aab0 [2023-11-12 00:53:48,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:48,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:48,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:48,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:48,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:48,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:48" (1/1) ... [2023-11-12 00:53:48,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1f3326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:48, skipping insertion in model container [2023-11-12 00:53:48,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:48" (1/1) ... [2023-11-12 00:53:48,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:49,347 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_3c79e7d9-68bd-40d2-b276-75a103cb90a3/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c[51091,51104] [2023-11-12 00:53:49,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:49,420 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:53:49,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-11-12 00:53:49,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1128] [2023-11-12 00:53:49,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1494] [2023-11-12 00:53:49,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1512] [2023-11-12 00:53:49,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1561] [2023-11-12 00:53:49,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1592] [2023-11-12 00:53:49,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1739] [2023-11-12 00:53:49,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2019] [2023-11-12 00:53:49,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2232] [2023-11-12 00:53:49,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2241] [2023-11-12 00:53:49,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2643] [2023-11-12 00:53:49,516 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_3c79e7d9-68bd-40d2-b276-75a103cb90a3/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c[51091,51104] [2023-11-12 00:53:49,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:49,599 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:49,605 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:53:49,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49 WrapperNode [2023-11-12 00:53:49,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:49,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:49,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:53:49,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:53:49,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,739 INFO L138 Inliner]: procedures = 128, calls = 208, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 865 [2023-11-12 00:53:49,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:49,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:53:49,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:53:49,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:53:49,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:53:49,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:53:49,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:53:49,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:53:49,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (1/1) ... [2023-11-12 00:53:49,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:49,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:49,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:53:49,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:53:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-12 00:53:49,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-12 00:53:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-12 00:53:49,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-12 00:53:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-12 00:53:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-12 00:53:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-12 00:53:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-12 00:53:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-12 00:53:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-12 00:53:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-12 00:53:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-12 00:53:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-12 00:53:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-12 00:53:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-12 00:53:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-12 00:53:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-12 00:53:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-12 00:53:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-12 00:53:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-12 00:53:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-12 00:53:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-12 00:53:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-12 00:53:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-12 00:53:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-12 00:53:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:53:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-12 00:53:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-12 00:53:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-12 00:53:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-12 00:53:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-12 00:53:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-12 00:53:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-12 00:53:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-12 00:53:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-12 00:53:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-12 00:53:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-12 00:53:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-12 00:53:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-12 00:53:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-12 00:53:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-12 00:53:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-12 00:53:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-12 00:53:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-12 00:53:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:53:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-12 00:53:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-12 00:53:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:53:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:53:50,148 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:53:50,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:53:50,974 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:51,569 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:51,569 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:53:51,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:51 BoogieIcfgContainer [2023-11-12 00:53:51,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:51,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:51,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:51,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:51,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:48" (1/3) ... [2023-11-12 00:53:51,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a34e0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:51, skipping insertion in model container [2023-11-12 00:53:51,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:49" (2/3) ... [2023-11-12 00:53:51,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a34e0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:51, skipping insertion in model container [2023-11-12 00:53:51,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:51" (3/3) ... [2023-11-12 00:53:51,582 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product28.cil.c [2023-11-12 00:53:51,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:51,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:53:51,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:53:51,667 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;@4b8a7fb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:53:51,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:53:51,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-12 00:53:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 00:53:51,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:51,688 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] [2023-11-12 00:53:51,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:51,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash -384850357, now seen corresponding path program 1 times [2023-11-12 00:53:51,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:51,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630026035] [2023-11-12 00:53:51,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:51,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:53:52,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:52,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630026035] [2023-11-12 00:53:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630026035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:52,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:52,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666572127] [2023-11-12 00:53:52,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:52,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:53:52,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:53:52,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:53:52,201 INFO L87 Difference]: Start difference. First operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:53:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:52,387 INFO L93 Difference]: Finished difference Result 277 states and 362 transitions. [2023-11-12 00:53:52,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:53:52,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2023-11-12 00:53:52,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:52,406 INFO L225 Difference]: With dead ends: 277 [2023-11-12 00:53:52,407 INFO L226 Difference]: Without dead ends: 177 [2023-11-12 00:53:52,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:53:52,422 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:52,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:53:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-12 00:53:52,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-12 00:53:52,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-12 00:53:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2023-11-12 00:53:52,509 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 61 [2023-11-12 00:53:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:52,512 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2023-11-12 00:53:52,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:53:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2023-11-12 00:53:52,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-12 00:53:52,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:52,524 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] [2023-11-12 00:53:52,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:53:52,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:52,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:52,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1756801085, now seen corresponding path program 1 times [2023-11-12 00:53:52,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:52,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565489375] [2023-11-12 00:53:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:52,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:53:52,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:52,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565489375] [2023-11-12 00:53:52,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565489375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:52,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:52,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:53:52,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974004965] [2023-11-12 00:53:52,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:52,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:52,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:52,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:52,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:52,810 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:53:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:52,986 INFO L93 Difference]: Finished difference Result 273 states and 350 transitions. [2023-11-12 00:53:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:52,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2023-11-12 00:53:52,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:53,000 INFO L225 Difference]: With dead ends: 273 [2023-11-12 00:53:53,001 INFO L226 Difference]: Without dead ends: 179 [2023-11-12 00:53:53,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:53,008 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:53,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 411 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:53:53,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-12 00:53:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-12 00:53:53,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-12 00:53:53,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 237 transitions. [2023-11-12 00:53:53,047 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 237 transitions. Word has length 62 [2023-11-12 00:53:53,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:53,048 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 237 transitions. [2023-11-12 00:53:53,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:53:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 237 transitions. [2023-11-12 00:53:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 00:53:53,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:53,054 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] [2023-11-12 00:53:53,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:53:53,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:53,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash 931351958, now seen corresponding path program 1 times [2023-11-12 00:53:53,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:53,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400724470] [2023-11-12 00:53:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:53:53,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:53,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400724470] [2023-11-12 00:53:53,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400724470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:53,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:53,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:53:53,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294640976] [2023-11-12 00:53:53,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:53,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:53,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:53,259 INFO L87 Difference]: Start difference. First operand 179 states and 237 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:53:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:53,363 INFO L93 Difference]: Finished difference Result 388 states and 533 transitions. [2023-11-12 00:53:53,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:53,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2023-11-12 00:53:53,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:53,366 INFO L225 Difference]: With dead ends: 388 [2023-11-12 00:53:53,367 INFO L226 Difference]: Without dead ends: 227 [2023-11-12 00:53:53,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:53,369 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 57 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:53,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 407 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:53:53,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-12 00:53:53,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2023-11-12 00:53:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 141 states have internal predecessors, (191), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 00:53:53,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2023-11-12 00:53:53,393 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 67 [2023-11-12 00:53:53,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:53,394 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2023-11-12 00:53:53,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:53:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2023-11-12 00:53:53,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 00:53:53,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:53,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:53,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:53:53,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:53,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash 245772466, now seen corresponding path program 1 times [2023-11-12 00:53:53,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:53,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294866782] [2023-11-12 00:53:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:53:53,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:53,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294866782] [2023-11-12 00:53:53,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294866782] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:53:53,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326329375] [2023-11-12 00:53:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:53,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:53:53,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:53,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:53:53,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c79e7d9-68bd-40d2-b276-75a103cb90a3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:53:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:54,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:53:54,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:53:54,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:53:54,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:53:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:53:54,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326329375] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:53:54,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [170540704] [2023-11-12 00:53:54,316 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2023-11-12 00:53:54,316 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:53:54,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:53:54,326 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:53:54,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:40,177 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-12 00:54:40,425 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-11-12 00:54:40,621 INFO L180 IcfgInterpreter]: Interpretation finished