./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:51:49,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:51:49,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:51:49,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:51:49,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:51:49,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:51:49,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:51:49,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:51:49,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:51:49,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:51:49,589 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:51:49,590 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:51:49,590 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:51:49,591 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:51:49,591 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:51:49,592 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:51:49,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:51:49,593 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:51:49,593 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:51:49,594 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:51:49,595 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:51:49,595 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:51:49,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:51:49,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:51:49,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:51:49,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:51:49,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:51:49,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:51:49,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:51:49,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:51:49,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:51:49,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:51:49,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:51:49,608 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:51:49,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:51:49,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:51:49,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:51:49,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:51:49,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:51:49,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:51:49,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:51:49,610 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:51:49,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:51:49,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:51:49,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:51:49,611 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:51:49,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:51:49,612 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35 [2023-12-02 14:51:49,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:51:49,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:51:49,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:51:49,866 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:51:49,867 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:51:49,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c [2023-12-02 14:51:52,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:51:52,857 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:51:52,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c [2023-12-02 14:51:52,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/data/bc9ddfc8b/ede419c5843c458b93a9ea8f14540223/FLAG1586a924c [2023-12-02 14:51:52,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/data/bc9ddfc8b/ede419c5843c458b93a9ea8f14540223 [2023-12-02 14:51:52,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:51:52,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:51:52,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:51:52,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:51:52,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:51:52,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:51:52" (1/1) ... [2023-12-02 14:51:52,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ef55a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:52, skipping insertion in model container [2023-12-02 14:51:52,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:51:52" (1/1) ... [2023-12-02 14:51:52,976 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:51:53,128 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556] [2023-12-02 14:51:53,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:51:53,443 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:51:53,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [57] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [75] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [441] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [767] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [915] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [1134] [2023-12-02 14:51:53,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1166] [2023-12-02 14:51:53,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1201] [2023-12-02 14:51:53,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1603] [2023-12-02 14:51:53,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2673] [2023-12-02 14:51:53,456 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556] [2023-12-02 14:51:53,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:51:53,610 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:51:53,616 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:51:53,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53 WrapperNode [2023-12-02 14:51:53,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:51:53,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:51:53,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:51:53,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:51:53,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,708 INFO L138 Inliner]: procedures = 134, calls = 229, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1086 [2023-12-02 14:51:53,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:51:53,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:51:53,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:51:53,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:51:53,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:51:53,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:51:53,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:51:53,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:51:53,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (1/1) ... [2023-12-02 14:51:53,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:51:53,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:51:53,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:51:53,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:51:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 14:51:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 14:51:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 14:51:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 14:51:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 14:51:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 14:51:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 14:51:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 14:51:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 14:51:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 14:51:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 14:51:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 14:51:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 14:51:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 14:51:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 14:51:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 14:51:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 14:51:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 14:51:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 14:51:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 14:51:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 14:51:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 14:51:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 14:51:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 14:51:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 14:51:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 14:51:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 14:51:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:51:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 14:51:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 14:51:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 14:51:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 14:51:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 14:51:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 14:51:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 14:51:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 14:51:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 14:51:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 14:51:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-12-02 14:51:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-12-02 14:51:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 14:51:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 14:51:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 14:51:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 14:51:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 14:51:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 14:51:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 14:51:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 14:51:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 14:51:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 14:51:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:51:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 14:51:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 14:51:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:51:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:51:54,071 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:51:54,074 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:51:54,845 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:51:55,360 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:51:55,361 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:51:55,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:51:55 BoogieIcfgContainer [2023-12-02 14:51:55,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:51:55,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:51:55,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:51:55,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:51:55,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:51:52" (1/3) ... [2023-12-02 14:51:55,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a509b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:51:55, skipping insertion in model container [2023-12-02 14:51:55,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:51:53" (2/3) ... [2023-12-02 14:51:55,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a509b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:51:55, skipping insertion in model container [2023-12-02 14:51:55,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:51:55" (3/3) ... [2023-12-02 14:51:55,373 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product33.cil.c [2023-12-02 14:51:55,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:51:55,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:51:55,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:51:55,458 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c628b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:51:55,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:51:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 130 states have internal predecessors, (164), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 14:51:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 14:51:55,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:51:55,490 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:51:55,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:51:55,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:51:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash 821035765, now seen corresponding path program 1 times [2023-12-02 14:51:55,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:51:55,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018407209] [2023-12-02 14:51:55,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:55,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:51:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:51:55,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:51:55,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018407209] [2023-12-02 14:51:55,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018407209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:51:55,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:51:55,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:51:55,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212494419] [2023-12-02 14:51:55,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:51:55,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:51:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:51:55,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:51:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:51:55,917 INFO L87 Difference]: Start difference. First operand has 218 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 130 states have internal predecessors, (164), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2023-12-02 14:51:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:51:56,055 INFO L93 Difference]: Finished difference Result 353 states and 466 transitions. [2023-12-02 14:51:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:51:56,058 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 92 [2023-12-02 14:51:56,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:51:56,071 INFO L225 Difference]: With dead ends: 353 [2023-12-02 14:51:56,071 INFO L226 Difference]: Without dead ends: 215 [2023-12-02 14:51:56,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:51:56,080 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:51:56,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:51:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-12-02 14:51:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-12-02 14:51:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 127 states have internal predecessors, (158), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-02 14:51:56,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 287 transitions. [2023-12-02 14:51:56,146 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 287 transitions. Word has length 92 [2023-12-02 14:51:56,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:51:56,148 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 287 transitions. [2023-12-02 14:51:56,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2023-12-02 14:51:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 287 transitions. [2023-12-02 14:51:56,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 14:51:56,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:51:56,155 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:51:56,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:51:56,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:51:56,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:51:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash 433322674, now seen corresponding path program 1 times [2023-12-02 14:51:56,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:51:56,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079381678] [2023-12-02 14:51:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:56,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:51:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:51:56,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:51:56,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079381678] [2023-12-02 14:51:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079381678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:51:56,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:51:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:51:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799807042] [2023-12-02 14:51:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:51:56,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:51:56,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:51:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:51:56,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:51:56,429 INFO L87 Difference]: Start difference. First operand 215 states and 287 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2023-12-02 14:51:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:51:56,571 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2023-12-02 14:51:56,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:51:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 93 [2023-12-02 14:51:56,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:51:56,576 INFO L225 Difference]: With dead ends: 349 [2023-12-02 14:51:56,576 INFO L226 Difference]: Without dead ends: 217 [2023-12-02 14:51:56,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:51:56,580 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:51:56,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:51:56,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-02 14:51:56,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2023-12-02 14:51:56,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 129 states have internal predecessors, (160), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-02 14:51:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 289 transitions. [2023-12-02 14:51:56,607 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 289 transitions. Word has length 93 [2023-12-02 14:51:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:51:56,608 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 289 transitions. [2023-12-02 14:51:56,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2023-12-02 14:51:56,608 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 289 transitions. [2023-12-02 14:51:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 14:51:56,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:51:56,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 14:51:56,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:51:56,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:51:56,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:51:56,615 INFO L85 PathProgramCache]: Analyzing trace with hash -519250390, now seen corresponding path program 1 times [2023-12-02 14:51:56,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:51:56,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238310772] [2023-12-02 14:51:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:56,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:51:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:51:56,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:51:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238310772] [2023-12-02 14:51:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238310772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:51:56,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:51:56,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:51:56,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026367068] [2023-12-02 14:51:56,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:51:56,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:51:56,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:51:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:51:56,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:51:56,754 INFO L87 Difference]: Start difference. First operand 217 states and 289 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) [2023-12-02 14:51:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:51:56,898 INFO L93 Difference]: Finished difference Result 464 states and 637 transitions. [2023-12-02 14:51:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:51:56,899 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 98 [2023-12-02 14:51:56,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:51:56,904 INFO L225 Difference]: With dead ends: 464 [2023-12-02 14:51:56,904 INFO L226 Difference]: Without dead ends: 265 [2023-12-02 14:51:56,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:51:56,907 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 57 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:51:56,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 494 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:51:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-02 14:51:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2023-12-02 14:51:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 161 states have internal predecessors, (213), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 14:51:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 364 transitions. [2023-12-02 14:51:56,932 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 364 transitions. Word has length 98 [2023-12-02 14:51:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:51:56,933 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 364 transitions. [2023-12-02 14:51:56,933 INFO L496 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) [2023-12-02 14:51:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 364 transitions. [2023-12-02 14:51:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 14:51:56,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:51:56,936 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 14:51:56,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:51:56,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:51:56,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:51:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1986027269, now seen corresponding path program 1 times [2023-12-02 14:51:56,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:51:56,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282139392] [2023-12-02 14:51:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:51:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:51:57,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:51:57,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282139392] [2023-12-02 14:51:57,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282139392] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:51:57,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025104702] [2023-12-02 14:51:57,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:57,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:51:57,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:51:57,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:51:57,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:51:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:57,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:51:57,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:51:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:51:57,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:51:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:51:57,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025104702] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:51:57,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2122448050] [2023-12-02 14:51:57,643 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2023-12-02 14:51:57,644 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:51:57,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:51:57,652 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:51:57,652 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:52:37,385 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:52:37,559 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 14:52:37,733 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:53:33,827 WARN L293 SmtUtils]: Spent 9.41s on a formula simplification. DAG size of input: 500 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:53:48,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2122448050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:53:48,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:53:48,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 14:53:48,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652509737] [2023-12-02 14:53:48,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:53:48,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 14:53:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:53:48,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 14:53:48,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 14:53:48,411 INFO L87 Difference]: Start difference. First operand 260 states and 364 transitions. Second operand has 24 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 14:53:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:53:58,640 INFO L93 Difference]: Finished difference Result 565 states and 824 transitions. [2023-12-02 14:53:58,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 14:53:58,641 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 99 [2023-12-02 14:53:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:53:58,644 INFO L225 Difference]: With dead ends: 565 [2023-12-02 14:53:58,644 INFO L226 Difference]: Without dead ends: 323 [2023-12-02 14:53:58,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 70.7s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 14:53:58,646 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 56 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:53:58,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3511 Invalid, 2077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-12-02 14:53:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-02 14:53:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 283. [2023-12-02 14:53:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 183 states have internal predecessors, (246), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 14:53:58,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 397 transitions. [2023-12-02 14:53:58,719 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 397 transitions. Word has length 99 [2023-12-02 14:53:58,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:53:58,720 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 397 transitions. [2023-12-02 14:53:58,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 14:53:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 397 transitions. [2023-12-02 14:53:58,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 14:53:58,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:53:58,724 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1] [2023-12-02 14:53:58,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:53:58,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:53:58,932 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:53:58,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:53:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash -712021720, now seen corresponding path program 1 times [2023-12-02 14:53:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:53:58,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874793601] [2023-12-02 14:53:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:53:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:53:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:53:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 14:53:59,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:53:59,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874793601] [2023-12-02 14:53:59,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874793601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:53:59,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:53:59,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:53:59,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767087968] [2023-12-02 14:53:59,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:53:59,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:53:59,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:53:59,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:53:59,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:53:59,052 INFO L87 Difference]: Start difference. First operand 283 states and 397 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 14:53:59,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:53:59,267 INFO L93 Difference]: Finished difference Result 659 states and 958 transitions. [2023-12-02 14:53:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:53:59,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2023-12-02 14:53:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:53:59,272 INFO L225 Difference]: With dead ends: 659 [2023-12-02 14:53:59,272 INFO L226 Difference]: Without dead ends: 400 [2023-12-02 14:53:59,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:53:59,274 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 55 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:53:59,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 504 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:53:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-12-02 14:53:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 395. [2023-12-02 14:53:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 267 states have (on average 1.4307116104868913) internal successors, (382), 270 states have internal predecessors, (382), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 14:53:59,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 583 transitions. [2023-12-02 14:53:59,404 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 583 transitions. Word has length 104 [2023-12-02 14:53:59,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:53:59,405 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 583 transitions. [2023-12-02 14:53:59,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 14:53:59,405 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 583 transitions. [2023-12-02 14:53:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 14:53:59,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:53:59,408 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1] [2023-12-02 14:53:59,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:53:59,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:53:59,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:53:59,409 INFO L85 PathProgramCache]: Analyzing trace with hash 802004118, now seen corresponding path program 1 times [2023-12-02 14:53:59,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:53:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629070779] [2023-12-02 14:53:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:53:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:53:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:53:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 14:53:59,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:53:59,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629070779] [2023-12-02 14:53:59,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629070779] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:53:59,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560236658] [2023-12-02 14:53:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:53:59,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:53:59,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:53:59,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:53:59,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:53:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:53:59,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:53:59,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:53:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 14:53:59,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:54:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 14:54:00,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560236658] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:54:00,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1592783070] [2023-12-02 14:54:00,070 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2023-12-02 14:54:00,070 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:54:00,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:54:00,071 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:54:00,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:54:55,928 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:54:56,091 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 480 for LOIs [2023-12-02 14:54:58,146 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:55:19,090 WARN L293 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 480 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:55:28,922 WARN L293 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 510 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:56:07,639 WARN L293 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 503 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:56:36,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1592783070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:56:36,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:56:36,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 14:56:36,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789966721] [2023-12-02 14:56:36,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:56:36,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 14:56:36,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:56:36,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 14:56:36,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 14:56:36,831 INFO L87 Difference]: Start difference. First operand 395 states and 583 transitions. Second operand has 28 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-12-02 14:56:51,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:56:51,104 INFO L93 Difference]: Finished difference Result 806 states and 1219 transitions. [2023-12-02 14:56:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 14:56:51,104 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 105 [2023-12-02 14:56:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:56:51,108 INFO L225 Difference]: With dead ends: 806 [2023-12-02 14:56:51,108 INFO L226 Difference]: Without dead ends: 474 [2023-12-02 14:56:51,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 98.7s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 14:56:51,110 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 217 mSDsluCounter, 3532 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:56:51,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 3765 Invalid, 2553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-02 14:56:51,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-12-02 14:56:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 409. [2023-12-02 14:56:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 279 states have (on average 1.4301075268817205) internal successors, (399), 282 states have internal predecessors, (399), 102 states have call successors, (102), 27 states have call predecessors, (102), 27 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-12-02 14:56:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 602 transitions. [2023-12-02 14:56:51,215 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 602 transitions. Word has length 105 [2023-12-02 14:56:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:56:51,216 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 602 transitions. [2023-12-02 14:56:51,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-12-02 14:56:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 602 transitions. [2023-12-02 14:56:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 14:56:51,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:56:51,218 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:56:51,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:56:51,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:56:51,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:56:51,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:56:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1697287770, now seen corresponding path program 1 times [2023-12-02 14:56:51,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:56:51,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067651121] [2023-12-02 14:56:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:56:51,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:56:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:56:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:56:51,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:56:51,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067651121] [2023-12-02 14:56:51,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067651121] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:56:51,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983122052] [2023-12-02 14:56:51,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:56:51,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:56:51,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:56:51,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:56:51,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:56:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:56:51,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:56:51,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:56:51,962 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:56:51,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:56:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:56:52,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983122052] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:56:52,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268816020] [2023-12-02 14:56:52,039 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2023-12-02 14:56:52,039 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:56:52,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:56:52,040 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:56:52,040 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:58:12,731 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:58:12,895 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 539 for LOIs [2023-12-02 14:58:14,640 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 548 for LOIs [2023-12-02 14:58:16,352 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 471 for LOIs [2023-12-02 14:58:17,075 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 14:58:17,229 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:59:15,076 WARN L293 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 576 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:59:26,594 WARN L293 SmtUtils]: Spent 11.09s on a formula simplification. DAG size of input: 576 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:00:17,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1268816020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:00:17,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:00:17,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 15:00:17,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119430942] [2023-12-02 15:00:17,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:00:17,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 15:00:17,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:00:17,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 15:00:17,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 15:00:17,146 INFO L87 Difference]: Start difference. First operand 409 states and 602 transitions. Second operand has 33 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-12-02 15:00:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:00:41,660 INFO L93 Difference]: Finished difference Result 831 states and 1254 transitions. [2023-12-02 15:00:41,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 15:00:41,661 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 108 [2023-12-02 15:00:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:00:41,664 INFO L225 Difference]: With dead ends: 831 [2023-12-02 15:00:41,665 INFO L226 Difference]: Without dead ends: 499 [2023-12-02 15:00:41,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 119.9s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 15:00:41,667 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 58 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3893 SdHoareTripleChecker+Invalid, 3462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:00:41,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3893 Invalid, 3462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 24.1s Time] [2023-12-02 15:00:41,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-02 15:00:41,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 445. [2023-12-02 15:00:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 309 states have (on average 1.4271844660194175) internal successors, (441), 312 states have internal predecessors, (441), 105 states have call successors, (105), 30 states have call predecessors, (105), 30 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 15:00:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 650 transitions. [2023-12-02 15:00:41,822 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 650 transitions. Word has length 108 [2023-12-02 15:00:41,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:00:41,822 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 650 transitions. [2023-12-02 15:00:41,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-12-02 15:00:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 650 transitions. [2023-12-02 15:00:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 15:00:41,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:00:41,824 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:00:41,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:00:42,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:00:42,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:00:42,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:00:42,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1380452814, now seen corresponding path program 1 times [2023-12-02 15:00:42,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:00:42,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515501092] [2023-12-02 15:00:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:42,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:00:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:00:42,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:00:42,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515501092] [2023-12-02 15:00:42,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515501092] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:00:42,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702509205] [2023-12-02 15:00:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:42,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:00:42,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:00:42,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:00:42,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:00:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:42,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:00:42,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:00:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:00:42,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:00:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:00:42,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702509205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:00:42,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1689869236] [2023-12-02 15:00:42,613 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2023-12-02 15:00:42,613 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:00:42,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:00:42,614 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:00:42,614 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:01:37,186 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 15:01:37,342 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 15:01:37,498 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:02:33,431 WARN L293 SmtUtils]: Spent 9.20s on a formula simplification. DAG size of input: 508 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:03:19,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1689869236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:19,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:03:19,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 15:03:19,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015063422] [2023-12-02 15:03:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:19,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 15:03:19,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 15:03:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 15:03:19,265 INFO L87 Difference]: Start difference. First operand 445 states and 650 transitions. Second operand has 32 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 15:03:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:32,102 INFO L93 Difference]: Finished difference Result 845 states and 1269 transitions. [2023-12-02 15:03:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 15:03:32,103 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 107 [2023-12-02 15:03:32,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:32,108 INFO L225 Difference]: With dead ends: 845 [2023-12-02 15:03:32,108 INFO L226 Difference]: Without dead ends: 513 [2023-12-02 15:03:32,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 101.7s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 15:03:32,111 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 52 mSDsluCounter, 3948 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4173 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:32,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4173 Invalid, 2611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-12-02 15:03:32,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-02 15:03:32,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 465. [2023-12-02 15:03:32,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 329 states have (on average 1.43161094224924) internal successors, (471), 332 states have internal predecessors, (471), 105 states have call successors, (105), 30 states have call predecessors, (105), 30 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 15:03:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 680 transitions. [2023-12-02 15:03:32,319 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 680 transitions. Word has length 107 [2023-12-02 15:03:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:32,320 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 680 transitions. [2023-12-02 15:03:32,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 15:03:32,320 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 680 transitions. [2023-12-02 15:03:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:03:32,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:32,324 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1] [2023-12-02 15:03:32,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 15:03:32,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:03:32,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:03:32,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:32,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1949816001, now seen corresponding path program 1 times [2023-12-02 15:03:32,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:32,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325332741] [2023-12-02 15:03:32,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:32,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-02 15:03:33,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325332741] [2023-12-02 15:03:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325332741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-02 15:03:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135355241] [2023-12-02 15:03:33,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:33,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 15:03:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:33,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 15:03:33,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-02 15:03:33,554 INFO L87 Difference]: Start difference. First operand 465 states and 680 transitions. Second operand has 18 states, 13 states have (on average 4.153846153846154) internal successors, (54), 15 states have internal predecessors, (54), 11 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 15:03:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:35,258 INFO L93 Difference]: Finished difference Result 800 states and 1118 transitions. [2023-12-02 15:03:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 15:03:35,258 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 4.153846153846154) internal successors, (54), 15 states have internal predecessors, (54), 11 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 110 [2023-12-02 15:03:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:35,263 INFO L225 Difference]: With dead ends: 800 [2023-12-02 15:03:35,263 INFO L226 Difference]: Without dead ends: 644 [2023-12-02 15:03:35,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 15:03:35,265 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 643 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:35,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 3203 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 15:03:35,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-12-02 15:03:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 632. [2023-12-02 15:03:35,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 427 states have (on average 1.3723653395784543) internal successors, (586), 430 states have internal predecessors, (586), 157 states have call successors, (157), 47 states have call predecessors, (157), 47 states have return successors, (157), 156 states have call predecessors, (157), 155 states have call successors, (157) [2023-12-02 15:03:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 900 transitions. [2023-12-02 15:03:35,556 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 900 transitions. Word has length 110 [2023-12-02 15:03:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:35,556 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 900 transitions. [2023-12-02 15:03:35,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 4.153846153846154) internal successors, (54), 15 states have internal predecessors, (54), 11 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 15:03:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 900 transitions. [2023-12-02 15:03:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 15:03:35,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:35,560 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:35,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 15:03:35,561 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:03:35,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:35,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1427767698, now seen corresponding path program 1 times [2023-12-02 15:03:35,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:35,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274404984] [2023-12-02 15:03:35,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:35,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-02 15:03:36,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:36,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274404984] [2023-12-02 15:03:36,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274404984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:36,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:36,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-02 15:03:36,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455246831] [2023-12-02 15:03:36,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:36,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 15:03:36,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 15:03:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-02 15:03:36,446 INFO L87 Difference]: Start difference. First operand 632 states and 900 transitions. Second operand has 16 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 12 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2023-12-02 15:03:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:37,956 INFO L93 Difference]: Finished difference Result 1201 states and 1626 transitions. [2023-12-02 15:03:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 15:03:37,957 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 12 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 116 [2023-12-02 15:03:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:37,963 INFO L225 Difference]: With dead ends: 1201 [2023-12-02 15:03:37,964 INFO L226 Difference]: Without dead ends: 921 [2023-12-02 15:03:37,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2023-12-02 15:03:37,967 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 564 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:37,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 2459 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 15:03:37,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-12-02 15:03:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 907. [2023-12-02 15:03:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 580 states have (on average 1.3155172413793104) internal successors, (763), 591 states have internal predecessors, (763), 244 states have call successors, (244), 80 states have call predecessors, (244), 82 states have return successors, (246), 240 states have call predecessors, (246), 240 states have call successors, (246) [2023-12-02 15:03:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1253 transitions. [2023-12-02 15:03:38,197 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1253 transitions. Word has length 116 [2023-12-02 15:03:38,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:38,198 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1253 transitions. [2023-12-02 15:03:38,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 12 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2023-12-02 15:03:38,198 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1253 transitions. [2023-12-02 15:03:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 15:03:38,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:38,202 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:38,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 15:03:38,202 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:03:38,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:38,202 INFO L85 PathProgramCache]: Analyzing trace with hash -188196090, now seen corresponding path program 1 times [2023-12-02 15:03:38,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:38,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327188577] [2023-12-02 15:03:38,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:38,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 15:03:38,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:38,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327188577] [2023-12-02 15:03:38,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327188577] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:03:38,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89498020] [2023-12-02 15:03:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:38,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:03:38,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:03:38,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:03:38,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ab1554c-6ebf-403a-b9a3-b38329e02a61/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 15:03:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:38,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:03:38,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:03:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 15:03:38,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:03:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 15:03:38,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89498020] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:03:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [362084849] [2023-12-02 15:03:38,944 INFO L159 IcfgInterpreter]: Started Sifa with 104 locations of interest [2023-12-02 15:03:38,945 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:03:38,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:03:38,946 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:03:38,946 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:04:38,524 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 15:04:38,681 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2023-12-02 15:04:42,257 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 224 for LOIs [2023-12-02 15:04:42,382 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 248 for LOIs [2023-12-02 15:04:42,612 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2023-12-02 15:05:07,871 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 258 for LOIs [2023-12-02 15:05:09,483 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 258 for LOIs [2023-12-02 15:05:09,702 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 263 for LOIs [2023-12-02 15:05:10,616 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 232 for LOIs [2023-12-02 15:05:10,908 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 243 for LOIs [2023-12-02 15:05:11,045 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 227 for LOIs [2023-12-02 15:05:11,185 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 228 for LOIs [2023-12-02 15:05:11,310 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 241 for LOIs [2023-12-02 15:05:11,443 INFO L180 IcfgInterpreter]: Interpretation finished