./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E --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 c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:31:59,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:31:59,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:31:59,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:31:59,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:31:59,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:31:59,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:31:59,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:31:59,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:31:59,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:31:59,277 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:31:59,277 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:31:59,277 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:31:59,278 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:31:59,278 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:31:59,278 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:31:59,279 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:31:59,279 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:31:59,279 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:31:59,279 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:31:59,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:31:59,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:31:59,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:31:59,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:31:59,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:31:59,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:31:59,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:31:59,283 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:31:59,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:31:59,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:31:59,284 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:31:59,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:31:59,284 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E 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 -> c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 [2024-11-13 23:31:59,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:31:59,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:31:59,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:31:59,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:31:59,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:31:59,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c Unable to find full path for "g++" [2024-11-13 23:32:01,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:32:01,903 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:32:01,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2024-11-13 23:32:01,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/data/75e973cc4/3d1d075171b548eba95db4d0848472e9/FLAG4027b85fb [2024-11-13 23:32:01,947 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/data/75e973cc4/3d1d075171b548eba95db4d0848472e9 [2024-11-13 23:32:01,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:32:01,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:32:01,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:01,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:32:01,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:32:01,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:01" (1/1) ... [2024-11-13 23:32:01,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf36214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:01, skipping insertion in model container [2024-11-13 23:32:01,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:01" (1/1) ... [2024-11-13 23:32:02,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:32:02,557 WARN L250 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_745124f0-4651-402f-9265-155643269734/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2024-11-13 23:32:02,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:02,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:32:02,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-13 23:32:02,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2024-11-13 23:32:02,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] [2024-11-13 23:32:02,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1051] [2024-11-13 23:32:02,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1356] [2024-11-13 23:32:02,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1716] [2024-11-13 23:32:02,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1736] [2024-11-13 23:32:02,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1771] [2024-11-13 23:32:02,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1780] [2024-11-13 23:32:02,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2847] [2024-11-13 23:32:02,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2982] [2024-11-13 23:32:02,768 WARN L250 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_745124f0-4651-402f-9265-155643269734/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2024-11-13 23:32:02,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:02,880 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:32:02,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02 WrapperNode [2024-11-13 23:32:02,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:02,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:02,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:32:02,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:32:02,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:02,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:02,997 INFO L138 Inliner]: procedures = 131, calls = 203, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1019 [2024-11-13 23:32:02,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:02,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:32:02,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:32:02,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:32:03,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:32:03,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:32:03,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:32:03,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:32:03,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (1/1) ... [2024-11-13 23:32:03,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:03,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:03,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:32:03,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-13 23:32:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-13 23:32:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-13 23:32:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-13 23:32:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-13 23:32:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-13 23:32:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 23:32:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 23:32:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 23:32:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 23:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 23:32:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 23:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 23:32:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 23:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-13 23:32:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-13 23:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-13 23:32:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-13 23:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 23:32:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 23:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 23:32:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 23:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 23:32:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 23:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-13 23:32:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-13 23:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-13 23:32:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-13 23:32:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 23:32:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 23:32:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 23:32:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 23:32:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 23:32:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 23:32:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-13 23:32:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-13 23:32:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 23:32:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 23:32:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-13 23:32:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-13 23:32:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 23:32:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 23:32:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 23:32:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 23:32:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:32:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 23:32:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 23:32:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:32:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:32:03,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:32:03,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:32:04,447 INFO L? ?]: Removed 473 outVars from TransFormulas that were not future-live. [2024-11-13 23:32:04,447 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:32:05,225 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:32:05,227 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:32:05,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:05 BoogieIcfgContainer [2024-11-13 23:32:05,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:32:05,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:32:05,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:32:05,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:32:05,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:32:01" (1/3) ... [2024-11-13 23:32:05,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe14f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:05, skipping insertion in model container [2024-11-13 23:32:05,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:02" (2/3) ... [2024-11-13 23:32:05,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe14f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:05, skipping insertion in model container [2024-11-13 23:32:05,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:05" (3/3) ... [2024-11-13 23:32:05,240 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product31.cil.c [2024-11-13 23:32:05,257 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:32:05,260 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product31.cil.c that has 24 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:32:05,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:32:05,362 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33927422, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:32:05,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:32:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 119 states have internal predecessors, (151), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-13 23:32:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 23:32:05,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:05,388 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:05,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:05,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash 137914577, now seen corresponding path program 1 times [2024-11-13 23:32:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:05,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243186345] [2024-11-13 23:32:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:32:05,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:05,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243186345] [2024-11-13 23:32:05,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243186345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:05,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:05,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:32:05,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624351494] [2024-11-13 23:32:05,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:05,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:32:05,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:05,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:32:05,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:32:05,934 INFO L87 Difference]: Start difference. First operand has 198 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 119 states have internal predecessors, (151), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:32:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:06,117 INFO L93 Difference]: Finished difference Result 313 states and 412 transitions. [2024-11-13 23:32:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:32:06,120 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 92 [2024-11-13 23:32:06,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:06,134 INFO L225 Difference]: With dead ends: 313 [2024-11-13 23:32:06,135 INFO L226 Difference]: Without dead ends: 195 [2024-11-13 23:32:06,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:32:06,148 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:06,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:06,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-13 23:32:06,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-13 23:32:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 116 states have internal predecessors, (145), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-13 23:32:06,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 260 transitions. [2024-11-13 23:32:06,235 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 260 transitions. Word has length 92 [2024-11-13 23:32:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:06,238 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 260 transitions. [2024-11-13 23:32:06,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:32:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 260 transitions. [2024-11-13 23:32:06,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 23:32:06,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:06,246 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:06,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:32:06,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:06,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:06,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1990374254, now seen corresponding path program 1 times [2024-11-13 23:32:06,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:06,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594186866] [2024-11-13 23:32:06,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:06,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:32:06,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:06,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594186866] [2024-11-13 23:32:06,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594186866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:06,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:06,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:32:06,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768395053] [2024-11-13 23:32:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:06,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:32:06,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:06,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:32:06,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:32:06,763 INFO L87 Difference]: Start difference. First operand 195 states and 260 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:32:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:06,959 INFO L93 Difference]: Finished difference Result 309 states and 400 transitions. [2024-11-13 23:32:06,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:32:06,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2024-11-13 23:32:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:06,963 INFO L225 Difference]: With dead ends: 309 [2024-11-13 23:32:06,965 INFO L226 Difference]: Without dead ends: 197 [2024-11-13 23:32:06,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:32:06,968 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:06,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-13 23:32:06,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-13 23:32:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 118 states have internal predecessors, (147), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-13 23:32:07,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 262 transitions. [2024-11-13 23:32:07,002 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 262 transitions. Word has length 93 [2024-11-13 23:32:07,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:07,002 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 262 transitions. [2024-11-13 23:32:07,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:32:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 262 transitions. [2024-11-13 23:32:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 23:32:07,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:07,013 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:07,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:32:07,014 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:07,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:07,014 INFO L85 PathProgramCache]: Analyzing trace with hash 590988156, now seen corresponding path program 1 times [2024-11-13 23:32:07,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:07,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757444223] [2024-11-13 23:32:07,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:07,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:32:07,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757444223] [2024-11-13 23:32:07,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757444223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:07,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:07,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:32:07,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669836943] [2024-11-13 23:32:07,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:07,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:32:07,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:07,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:32:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:32:07,278 INFO L87 Difference]: Start difference. First operand 197 states and 262 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:32:07,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:07,449 INFO L93 Difference]: Finished difference Result 424 states and 583 transitions. [2024-11-13 23:32:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:32:07,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 98 [2024-11-13 23:32:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:07,454 INFO L225 Difference]: With dead ends: 424 [2024-11-13 23:32:07,457 INFO L226 Difference]: Without dead ends: 245 [2024-11-13 23:32:07,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:32:07,460 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 57 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:07,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 458 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:07,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-13 23:32:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2024-11-13 23:32:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 150 states have internal predecessors, (200), 69 states have call successors, (69), 23 states have call predecessors, (69), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-13 23:32:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 337 transitions. [2024-11-13 23:32:07,508 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 337 transitions. Word has length 98 [2024-11-13 23:32:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:07,509 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 337 transitions. [2024-11-13 23:32:07,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:32:07,509 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 337 transitions. [2024-11-13 23:32:07,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 23:32:07,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:07,515 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:07,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:32:07,517 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:07,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:07,519 INFO L85 PathProgramCache]: Analyzing trace with hash -767610310, now seen corresponding path program 1 times [2024-11-13 23:32:07,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:07,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423821225] [2024-11-13 23:32:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:07,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:32:07,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:07,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423821225] [2024-11-13 23:32:07,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423821225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:32:07,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516146731] [2024-11-13 23:32:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:07,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:07,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:07,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:07,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:32:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:08,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:32:08,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:32:08,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:32:08,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516146731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:32:08,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1961636915] [2024-11-13 23:32:08,702 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-13 23:32:08,702 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:32:08,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:32:08,710 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:32:08,710 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:32:36,795 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2024-11-13 23:32:36,982 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-13 23:32:37,224 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:33,484 WARN L286 SmtUtils]: Spent 9.71s on a formula simplification. DAG size of input: 455 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:33:43,992 WARN L286 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 456 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:33:54,674 WARN L286 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 460 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:33:59,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1961636915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:59,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:33:59,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-13 23:33:59,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376698350] [2024-11-13 23:33:59,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:59,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:33:59,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:59,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:33:59,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:33:59,214 INFO L87 Difference]: Start difference. First operand 240 states and 337 transitions. Second operand has 23 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:34:11,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:11,680 INFO L93 Difference]: Finished difference Result 494 states and 710 transitions. [2024-11-13 23:34:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 23:34:11,681 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 99 [2024-11-13 23:34:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:11,683 INFO L225 Difference]: With dead ends: 494 [2024-11-13 23:34:11,683 INFO L226 Difference]: Without dead ends: 272 [2024-11-13 23:34:11,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 272 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 85.2s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:34:11,685 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 25 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:11,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3296 Invalid, 1973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-13 23:34:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-13 23:34:11,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 263. [2024-11-13 23:34:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 169 states have (on average 1.378698224852071) internal successors, (233), 172 states have internal predecessors, (233), 69 states have call successors, (69), 24 states have call predecessors, (69), 24 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-13 23:34:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 370 transitions. [2024-11-13 23:34:11,748 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 370 transitions. Word has length 99 [2024-11-13 23:34:11,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:11,749 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 370 transitions. [2024-11-13 23:34:11,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:34:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 370 transitions. [2024-11-13 23:34:11,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 23:34:11,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:11,751 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:11,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 23:34:11,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:11,955 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:34:11,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash -43759677, now seen corresponding path program 1 times [2024-11-13 23:34:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816678067] [2024-11-13 23:34:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:11,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:12,080 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:12,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:12,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816678067] [2024-11-13 23:34:12,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816678067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:12,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:34:12,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:34:12,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303932348] [2024-11-13 23:34:12,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:12,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:34:12,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:12,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:34:12,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:12,083 INFO L87 Difference]: Start difference. First operand 263 states and 370 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 23:34:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:12,288 INFO L93 Difference]: Finished difference Result 619 states and 904 transitions. [2024-11-13 23:34:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:34:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2024-11-13 23:34:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:12,292 INFO L225 Difference]: With dead ends: 619 [2024-11-13 23:34:12,292 INFO L226 Difference]: Without dead ends: 380 [2024-11-13 23:34:12,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:12,294 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 55 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:12,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 461 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:34:12,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-13 23:34:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 375. [2024-11-13 23:34:12,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 256 states have (on average 1.44140625) internal successors, (369), 259 states have internal predecessors, (369), 94 states have call successors, (94), 24 states have call predecessors, (94), 24 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 23:34:12,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 556 transitions. [2024-11-13 23:34:12,402 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 556 transitions. Word has length 104 [2024-11-13 23:34:12,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:12,403 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 556 transitions. [2024-11-13 23:34:12,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 23:34:12,403 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 556 transitions. [2024-11-13 23:34:12,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 23:34:12,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:12,405 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:12,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:34:12,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:34:12,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:12,406 INFO L85 PathProgramCache]: Analyzing trace with hash 55427422, now seen corresponding path program 1 times [2024-11-13 23:34:12,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:12,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380833519] [2024-11-13 23:34:12,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:12,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:12,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:12,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380833519] [2024-11-13 23:34:12,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380833519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:12,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819986562] [2024-11-13 23:34:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:12,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:12,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:12,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:12,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:34:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:13,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:34:13,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:13,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:13,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819986562] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1287087836] [2024-11-13 23:34:13,297 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2024-11-13 23:34:13,298 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:13,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:13,300 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:13,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:44,834 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2024-11-13 23:34:44,947 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 440 for LOIs [2024-11-13 23:34:45,995 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:08,762 WARN L286 SmtUtils]: Spent 7.38s on a formula simplification. DAG size of input: 440 DAG size of output: 440 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:35:19,343 WARN L286 SmtUtils]: Spent 10.29s on a formula simplification. DAG size of input: 464 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:35:59,384 WARN L286 SmtUtils]: Spent 9.89s on a formula simplification. DAG size of input: 457 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:36:10,880 WARN L286 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 458 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:36:21,835 WARN L286 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 462 DAG size of output: 461 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:36:32,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1287087836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:32,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:36:32,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-13 23:36:32,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376464752] [2024-11-13 23:36:32,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:32,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:36:32,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:36:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:36:32,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:36:32,458 INFO L87 Difference]: Start difference. First operand 375 states and 556 transitions. Second operand has 27 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-13 23:36:56,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:56,890 INFO L93 Difference]: Finished difference Result 762 states and 1155 transitions. [2024-11-13 23:36:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-13 23:36:56,893 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 105 [2024-11-13 23:36:56,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:56,896 INFO L225 Difference]: With dead ends: 762 [2024-11-13 23:36:56,896 INFO L226 Difference]: Without dead ends: 450 [2024-11-13 23:36:56,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 119.6s TimeCoverageRelationStatistics Valid=134, Invalid=1126, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 23:36:56,900 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 87 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3714 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:56,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3714 Invalid, 2551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-11-13 23:36:56,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-13 23:36:56,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 389. [2024-11-13 23:36:57,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 268 states have (on average 1.4402985074626866) internal successors, (386), 271 states have internal predecessors, (386), 95 states have call successors, (95), 25 states have call predecessors, (95), 25 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-13 23:36:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 575 transitions. [2024-11-13 23:36:57,003 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 575 transitions. Word has length 105 [2024-11-13 23:36:57,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:57,004 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 575 transitions. [2024-11-13 23:36:57,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-13 23:36:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 575 transitions. [2024-11-13 23:36:57,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 23:36:57,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:57,007 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:36:57,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 23:36:57,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 23:36:57,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:36:57,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1553504239, now seen corresponding path program 1 times [2024-11-13 23:36:57,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:36:57,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686299342] [2024-11-13 23:36:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:57,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:36:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:36:57,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:36:57,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686299342] [2024-11-13 23:36:57,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686299342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:36:57,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763602265] [2024-11-13 23:36:57,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:57,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:36:57,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:36:57,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:36:57,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:36:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:57,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:36:57,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:36:57,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:36:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:36:58,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763602265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:36:58,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435805441] [2024-11-13 23:36:58,005 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-13 23:36:58,006 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:36:58,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:36:58,006 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:36:58,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:37:46,806 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2024-11-13 23:37:46,907 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 486 for LOIs [2024-11-13 23:37:47,789 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 495 for LOIs [2024-11-13 23:37:48,616 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 431 for LOIs [2024-11-13 23:37:48,884 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-13 23:37:49,017 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:38:52,642 WARN L286 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 515 DAG size of output: 510 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:39:06,773 WARN L286 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 516 DAG size of output: 510 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:40:03,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1435805441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:40:03,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:40:03,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-13 23:40:03,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613935902] [2024-11-13 23:40:03,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:40:03,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 23:40:03,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:40:03,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 23:40:03,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:40:03,097 INFO L87 Difference]: Start difference. First operand 389 states and 575 transitions. Second operand has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-13 23:40:28,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:40:28,201 INFO L93 Difference]: Finished difference Result 783 states and 1186 transitions. [2024-11-13 23:40:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 23:40:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 108 [2024-11-13 23:40:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:40:28,205 INFO L225 Difference]: With dead ends: 783 [2024-11-13 23:40:28,206 INFO L226 Difference]: Without dead ends: 471 [2024-11-13 23:40:28,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 137.7s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 23:40:28,208 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 75 mSDsluCounter, 3563 mSDsCounter, 0 mSdLazyCounter, 3426 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 3436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:40:28,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3767 Invalid, 3436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3426 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2024-11-13 23:40:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-13 23:40:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 425. [2024-11-13 23:40:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 298 states have (on average 1.436241610738255) internal successors, (428), 301 states have internal predecessors, (428), 98 states have call successors, (98), 28 states have call predecessors, (98), 28 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-13 23:40:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 623 transitions. [2024-11-13 23:40:28,379 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 623 transitions. Word has length 108 [2024-11-13 23:40:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:40:28,380 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 623 transitions. [2024-11-13 23:40:28,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-13 23:40:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 623 transitions. [2024-11-13 23:40:28,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 23:40:28,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:28,384 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:28,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:40:28,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:40:28,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:40:28,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:28,585 INFO L85 PathProgramCache]: Analyzing trace with hash 588888420, now seen corresponding path program 1 times [2024-11-13 23:40:28,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:40:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364896779] [2024-11-13 23:40:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:28,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:40:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:40:28,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:40:28,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364896779] [2024-11-13 23:40:28,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364896779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:40:28,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089206093] [2024-11-13 23:40:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:28,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:40:28,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:40:28,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:40:28,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:40:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:29,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:40:29,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:40:29,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:40:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:40:29,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089206093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:40:29,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711556325] [2024-11-13 23:40:29,456 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2024-11-13 23:40:29,457 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:40:29,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:40:29,457 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:40:29,458 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:41:14,112 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2024-11-13 23:41:14,223 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-13 23:41:14,369 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:42:20,138 WARN L286 SmtUtils]: Spent 11.79s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:42:32,880 WARN L286 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 457 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:42:46,209 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:43:14,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [711556325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:43:14,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:43:14,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-13 23:43:14,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513631298] [2024-11-13 23:43:14,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:43:14,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:43:14,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:43:14,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:43:14,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:43:14,096 INFO L87 Difference]: Start difference. First operand 425 states and 623 transitions. Second operand has 27 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:43:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:43:29,584 INFO L93 Difference]: Finished difference Result 785 states and 1177 transitions. [2024-11-13 23:43:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 23:43:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 107 [2024-11-13 23:43:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:43:29,589 INFO L225 Difference]: With dead ends: 785 [2024-11-13 23:43:29,589 INFO L226 Difference]: Without dead ends: 473 [2024-11-13 23:43:29,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 288 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 123.3s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 23:43:29,592 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 17 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:43:29,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2926 Invalid, 2212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-13 23:43:29,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-13 23:43:29,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 445. [2024-11-13 23:43:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 318 states have (on average 1.440251572327044) internal successors, (458), 321 states have internal predecessors, (458), 98 states have call successors, (98), 28 states have call predecessors, (98), 28 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-13 23:43:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 653 transitions. [2024-11-13 23:43:29,848 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 653 transitions. Word has length 107 [2024-11-13 23:43:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:43:29,850 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 653 transitions. [2024-11-13 23:43:29,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:43:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 653 transitions. [2024-11-13 23:43:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 23:43:29,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:43:29,857 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:43:29,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 23:43:30,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:43:30,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:43:30,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:43:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash 423416183, now seen corresponding path program 1 times [2024-11-13 23:43:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:43:30,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654685165] [2024-11-13 23:43:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:43:30,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:43:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:43:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 23:43:31,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:43:31,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654685165] [2024-11-13 23:43:31,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654685165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:43:31,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617912305] [2024-11-13 23:43:31,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:43:31,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:43:31,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:43:31,284 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:43:31,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:43:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:43:31,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:43:31,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:43:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:43:31,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:43:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:43:31,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617912305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:43:31,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2037579655] [2024-11-13 23:43:31,983 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2024-11-13 23:43:31,984 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:43:31,984 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:43:31,984 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:43:31,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:05,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2024-11-13 23:44:05,157 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 440 for LOIs [2024-11-13 23:44:06,246 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:33,517 WARN L286 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 440 DAG size of output: 440 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:44:45,101 WARN L286 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 464 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:45:37,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2037579655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:37,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:45:37,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [19, 5, 5] total 48 [2024-11-13 23:45:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427829017] [2024-11-13 23:45:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:37,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:45:37,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:37,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:45:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=2093, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 23:45:37,970 INFO L87 Difference]: Start difference. First operand 445 states and 653 transitions. Second operand has 27 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 17 states have internal predecessors, (51), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-13 23:45:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:56,614 INFO L93 Difference]: Finished difference Result 893 states and 1357 transitions. [2024-11-13 23:45:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 23:45:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 17 states have internal predecessors, (51), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 110 [2024-11-13 23:45:56,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:56,618 INFO L225 Difference]: With dead ends: 893 [2024-11-13 23:45:56,618 INFO L226 Difference]: Without dead ends: 541 [2024-11-13 23:45:56,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 97.1s TimeCoverageRelationStatistics Valid=191, Invalid=2359, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 23:45:56,621 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 116 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:56,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 3580 Invalid, 2943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2024-11-13 23:45:56,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-13 23:45:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 458. [2024-11-13 23:45:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 328 states have (on average 1.4359756097560976) internal successors, (471), 332 states have internal predecessors, (471), 100 states have call successors, (100), 29 states have call predecessors, (100), 29 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-13 23:45:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 670 transitions. [2024-11-13 23:45:56,848 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 670 transitions. Word has length 110 [2024-11-13 23:45:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:56,848 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 670 transitions. [2024-11-13 23:45:56,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 17 states have internal predecessors, (51), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-13 23:45:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 670 transitions. [2024-11-13 23:45:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 23:45:56,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:56,851 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:56,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 23:45:57,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:57,052 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:57,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1888781127, now seen corresponding path program 1 times [2024-11-13 23:45:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:57,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025605789] [2024-11-13 23:45:57,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:57,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:45:59,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:59,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025605789] [2024-11-13 23:45:59,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025605789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:45:59,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311167297] [2024-11-13 23:45:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:59,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:59,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:59,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:59,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745124f0-4651-402f-9265-155643269734/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:45:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:00,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:00,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:46:00,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 23:46:00,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311167297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:00,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1377104593] [2024-11-13 23:46:00,361 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2024-11-13 23:46:00,361 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:46:00,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:46:00,362 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:46:00,362 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs