./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/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_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/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_27f467fd-bc6e-4379-8861-156f13521326/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 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:06:20,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:06:20,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:06:20,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:06:20,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:06:20,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:06:20,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:06:20,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:06:20,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:06:20,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:06:20,871 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:06:20,871 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:06:20,872 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:06:20,872 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:06:20,873 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:06:20,874 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:06:20,874 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:06:20,875 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:06:20,875 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:06:20,876 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:06:20,876 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:06:20,877 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:06:20,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:06:20,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:06:20,879 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:06:20,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:06:20,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:06:20,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:06:20,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:06:20,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:06:20,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:06:20,882 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:06:20,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:06:20,882 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:06:20,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:06:20,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:06:20,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:06:20,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:06:20,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:06:20,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:06:20,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:06:20,884 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:06:20,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:06:20,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:06:20,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:06:20,885 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:06:20,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:06:20,885 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_27f467fd-bc6e-4379-8861-156f13521326/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc [2023-12-02 13:06:21,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:06:21,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:06:21,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:06:21,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:06:21,170 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:06:21,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2023-12-02 13:06:24,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:06:24,639 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:06:24,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2023-12-02 13:06:24,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/data/0b6850c14/c3524d769cc845949d6c57dc41eb85c9/FLAG4a3015cd7 [2023-12-02 13:06:24,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/data/0b6850c14/c3524d769cc845949d6c57dc41eb85c9 [2023-12-02 13:06:24,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:06:24,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:06:24,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:06:24,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:06:24,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:06:24,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:06:24" (1/1) ... [2023-12-02 13:06:24,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e43b41a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:24, skipping insertion in model container [2023-12-02 13:06:24,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:06:24" (1/1) ... [2023-12-02 13:06:24,793 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:06:25,118 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_27f467fd-bc6e-4379-8861-156f13521326/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2023-12-02 13:06:25,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:06:25,396 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:06:25,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-02 13:06:25,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [97] [2023-12-02 13:06:25,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [398] [2023-12-02 13:06:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [407] [2023-12-02 13:06:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [519] [2023-12-02 13:06:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [735] [2023-12-02 13:06:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1101] [2023-12-02 13:06:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2173] [2023-12-02 13:06:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2578] [2023-12-02 13:06:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2597] [2023-12-02 13:06:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2614] [2023-12-02 13:06:25,429 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_27f467fd-bc6e-4379-8861-156f13521326/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2023-12-02 13:06:25,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:06:25,547 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:06:25,557 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:06:25,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25 WrapperNode [2023-12-02 13:06:25,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:06:25,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:06:25,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:06:25,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:06:25,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,658 INFO L138 Inliner]: procedures = 125, calls = 195, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 993 [2023-12-02 13:06:25,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:06:25,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:06:25,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:06:25,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:06:25,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:06:25,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:06:25,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:06:25,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:06:25,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (1/1) ... [2023-12-02 13:06:25,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:06:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:06:25,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:06:25,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:06:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 13:06:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 13:06:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 13:06:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 13:06:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:06:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:06:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:06:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:06:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 13:06:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 13:06:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:06:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:06:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 13:06:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 13:06:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:06:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:06:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:06:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:06:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:06:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:06:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:06:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:06:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:06:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:06:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:06:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:06:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:06:25,819 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:06:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 13:06:25,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 13:06:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:06:25,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:06:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:06:25,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:06:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:06:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:06:25,820 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:06:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:06:25,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:06:26,029 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:06:26,031 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:06:26,755 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:06:27,242 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:06:27,242 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:06:27,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:06:27 BoogieIcfgContainer [2023-12-02 13:06:27,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:06:27,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:06:27,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:06:27,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:06:27,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:06:24" (1/3) ... [2023-12-02 13:06:27,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5150b088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:06:27, skipping insertion in model container [2023-12-02 13:06:27,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:25" (2/3) ... [2023-12-02 13:06:27,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5150b088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:06:27, skipping insertion in model container [2023-12-02 13:06:27,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:06:27" (3/3) ... [2023-12-02 13:06:27,254 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2023-12-02 13:06:27,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:06:27,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:06:27,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:06:27,334 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;@71553e26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:06:27,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:06:27,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 92 states have (on average 1.358695652173913) internal successors, (125), 96 states have internal predecessors, (125), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 13:06:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 13:06:27,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:06:27,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 13:06:27,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:06:27,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:06:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1877525163, now seen corresponding path program 1 times [2023-12-02 13:06:27,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:06:27,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830294829] [2023-12-02 13:06:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:27,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:06:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:27,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:06:27,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:06:27,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830294829] [2023-12-02 13:06:27,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830294829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:06:27,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:06:27,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:06:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474521922] [2023-12-02 13:06:27,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:06:27,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:06:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:06:27,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:06:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:06:27,778 INFO L87 Difference]: Start difference. First operand has 156 states, 92 states have (on average 1.358695652173913) internal successors, (125), 96 states have internal predecessors, (125), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:06:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:06:27,909 INFO L93 Difference]: Finished difference Result 229 states and 308 transitions. [2023-12-02 13:06:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:06:27,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2023-12-02 13:06:27,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:06:27,925 INFO L225 Difference]: With dead ends: 229 [2023-12-02 13:06:27,926 INFO L226 Difference]: Without dead ends: 153 [2023-12-02 13:06:27,930 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 13:06:27,934 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:06:27,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:06:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-02 13:06:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-12-02 13:06:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 93 states have internal predecessors, (119), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 13:06:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 208 transitions. [2023-12-02 13:06:27,995 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 208 transitions. Word has length 70 [2023-12-02 13:06:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:06:27,996 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 208 transitions. [2023-12-02 13:06:27,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:06:27,997 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 208 transitions. [2023-12-02 13:06:28,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 13:06:28,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:06:28,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 13:06:28,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:06:28,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:06:28,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:06:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash -347768135, now seen corresponding path program 1 times [2023-12-02 13:06:28,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:06:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160636045] [2023-12-02 13:06:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:06:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:06:28,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:06:28,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160636045] [2023-12-02 13:06:28,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160636045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:06:28,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:06:28,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:06:28,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095618349] [2023-12-02 13:06:28,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:06:28,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:06:28,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:06:28,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:06:28,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:06:28,244 INFO L87 Difference]: Start difference. First operand 153 states and 208 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:06:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:06:28,362 INFO L93 Difference]: Finished difference Result 225 states and 296 transitions. [2023-12-02 13:06:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:06:28,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-12-02 13:06:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:06:28,366 INFO L225 Difference]: With dead ends: 225 [2023-12-02 13:06:28,366 INFO L226 Difference]: Without dead ends: 155 [2023-12-02 13:06:28,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:06:28,369 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:06:28,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:06:28,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-02 13:06:28,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-12-02 13:06:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 92 states have (on average 1.315217391304348) internal successors, (121), 95 states have internal predecessors, (121), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 13:06:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 210 transitions. [2023-12-02 13:06:28,390 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 210 transitions. Word has length 71 [2023-12-02 13:06:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:06:28,390 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 210 transitions. [2023-12-02 13:06:28,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:06:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 210 transitions. [2023-12-02 13:06:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 13:06:28,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:06:28,395 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] [2023-12-02 13:06:28,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:06:28,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:06:28,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:06:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1938913724, now seen corresponding path program 1 times [2023-12-02 13:06:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:06:28,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459398135] [2023-12-02 13:06:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:28,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:06:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:06:28,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:06:28,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459398135] [2023-12-02 13:06:28,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459398135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:06:28,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:06:28,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:06:28,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297358629] [2023-12-02 13:06:28,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:06:28,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:06:28,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:06:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:06:28,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:06:28,553 INFO L87 Difference]: Start difference. First operand 155 states and 210 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:06:28,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:06:28,672 INFO L93 Difference]: Finished difference Result 340 states and 479 transitions. [2023-12-02 13:06:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:06:28,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2023-12-02 13:06:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:06:28,676 INFO L225 Difference]: With dead ends: 340 [2023-12-02 13:06:28,676 INFO L226 Difference]: Without dead ends: 203 [2023-12-02 13:06:28,678 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 13:06:28,680 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 57 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:06:28,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 367 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:06:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-02 13:06:28,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2023-12-02 13:06:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 124 states have (on average 1.403225806451613) internal successors, (174), 127 states have internal predecessors, (174), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 13:06:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 285 transitions. [2023-12-02 13:06:28,706 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 285 transitions. Word has length 76 [2023-12-02 13:06:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:06:28,707 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 285 transitions. [2023-12-02 13:06:28,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:06:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 285 transitions. [2023-12-02 13:06:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 13:06:28,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:06:28,712 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] [2023-12-02 13:06:28,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:06:28,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:06:28,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:06:28,713 INFO L85 PathProgramCache]: Analyzing trace with hash -586814408, now seen corresponding path program 1 times [2023-12-02 13:06:28,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:06:28,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109062291] [2023-12-02 13:06:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:28,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:06:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:06:28,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:06:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109062291] [2023-12-02 13:06:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109062291] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:06:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647851636] [2023-12-02 13:06:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:28,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:06:28,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:06:28,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:06:28,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:06:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:29,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:06:29,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:06:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:06:29,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:06:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:06:29,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647851636] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:06:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898686925] [2023-12-02 13:06:29,496 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2023-12-02 13:06:29,496 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:06:29,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:06:29,508 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:06:29,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:07:14,742 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 13:07:14,914 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 13:07:15,090 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:08:23,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [898686925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:23,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:08:23,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:08:23,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326809594] [2023-12-02 13:08:23,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:23,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:08:23,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:23,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:08:23,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:08:23,137 INFO L87 Difference]: Start difference. First operand 198 states and 285 transitions. Second operand has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 13:08:33,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:33,519 INFO L93 Difference]: Finished difference Result 441 states and 666 transitions. [2023-12-02 13:08:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:08:33,519 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 77 [2023-12-02 13:08:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:33,523 INFO L225 Difference]: With dead ends: 441 [2023-12-02 13:08:33,523 INFO L226 Difference]: Without dead ends: 261 [2023-12-02 13:08:33,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:08:33,526 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 84 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:33,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2502 Invalid, 2054 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-12-02 13:08:33,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-12-02 13:08:33,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 221. [2023-12-02 13:08:33,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 146 states have (on average 1.417808219178082) internal successors, (207), 149 states have internal predecessors, (207), 56 states have call successors, (56), 18 states have call predecessors, (56), 18 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 13:08:33,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 318 transitions. [2023-12-02 13:08:33,598 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 318 transitions. Word has length 77 [2023-12-02 13:08:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:33,598 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 318 transitions. [2023-12-02 13:08:33,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 13:08:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 318 transitions. [2023-12-02 13:08:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 13:08:33,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:33,601 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-02 13:08:33,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:08:33,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:33,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:33,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1961413854, now seen corresponding path program 1 times [2023-12-02 13:08:33,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:33,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33392125] [2023-12-02 13:08:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:33,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 13:08:33,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33392125] [2023-12-02 13:08:33,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33392125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:33,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:08:33,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:08:33,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079726651] [2023-12-02 13:08:33,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:33,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:08:33,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:33,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:08:33,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:08:33,924 INFO L87 Difference]: Start difference. First operand 221 states and 318 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:08:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:34,141 INFO L93 Difference]: Finished difference Result 535 states and 800 transitions. [2023-12-02 13:08:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:08:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2023-12-02 13:08:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:34,146 INFO L225 Difference]: With dead ends: 535 [2023-12-02 13:08:34,146 INFO L226 Difference]: Without dead ends: 338 [2023-12-02 13:08:34,147 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 13:08:34,148 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 55 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:34,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 372 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:08:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-12-02 13:08:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 333. [2023-12-02 13:08:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 233 states have (on average 1.4721030042918455) internal successors, (343), 236 states have internal predecessors, (343), 81 states have call successors, (81), 18 states have call predecessors, (81), 18 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-02 13:08:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 504 transitions. [2023-12-02 13:08:34,276 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 504 transitions. Word has length 82 [2023-12-02 13:08:34,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:34,277 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 504 transitions. [2023-12-02 13:08:34,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:08:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 504 transitions. [2023-12-02 13:08:34,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 13:08:34,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:34,281 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-02 13:08:34,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:08:34,281 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:34,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:34,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2147137741, now seen corresponding path program 1 times [2023-12-02 13:08:34,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:34,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586476977] [2023-12-02 13:08:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:34,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 13:08:34,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586476977] [2023-12-02 13:08:34,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586476977] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:08:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863673798] [2023-12-02 13:08:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:34,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:34,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:34,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:34,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:08:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:34,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:08:34,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 13:08:34,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:08:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 13:08:34,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863673798] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:08:34,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1580821039] [2023-12-02 13:08:34,833 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2023-12-02 13:08:34,833 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:08:34,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:08:34,834 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:08:34,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:09:46,619 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 13:09:46,806 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 461 for LOIs [2023-12-02 13:09:49,223 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:10:11,428 WARN L293 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 461 DAG size of output: 461 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:10:20,597 WARN L293 SmtUtils]: Spent 9.00s on a formula simplification. DAG size of input: 491 DAG size of output: 486 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:11:01,435 WARN L293 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 484 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:11:12,175 WARN L293 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 485 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:11:23,165 WARN L293 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 491 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:11:33,540 WARN L293 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 489 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:11:44,527 WARN L293 SmtUtils]: Spent 10.51s on a formula simplification. DAG size of input: 493 DAG size of output: 492 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:11:55,071 WARN L293 SmtUtils]: Spent 9.99s on a formula simplification. DAG size of input: 491 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:12:06,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1580821039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:12:06,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:12:06,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:12:06,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070746214] [2023-12-02 13:12:06,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:12:06,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:12:06,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:12:06,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:12:06,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:12:06,580 INFO L87 Difference]: Start difference. First operand 333 states and 504 transitions. Second operand has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 13:12:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:12:19,839 INFO L93 Difference]: Finished difference Result 682 states and 1061 transitions. [2023-12-02 13:12:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:12:19,839 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 83 [2023-12-02 13:12:19,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:12:19,842 INFO L225 Difference]: With dead ends: 682 [2023-12-02 13:12:19,842 INFO L226 Difference]: Without dead ends: 412 [2023-12-02 13:12:19,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 137.3s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:12:19,845 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 97 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:12:19,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 2326 Invalid, 2058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-12-02 13:12:19,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-12-02 13:12:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 347. [2023-12-02 13:12:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 245 states have (on average 1.469387755102041) internal successors, (360), 248 states have internal predecessors, (360), 82 states have call successors, (82), 19 states have call predecessors, (82), 19 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 13:12:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 523 transitions. [2023-12-02 13:12:19,984 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 523 transitions. Word has length 83 [2023-12-02 13:12:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:12:19,985 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 523 transitions. [2023-12-02 13:12:19,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 13:12:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 523 transitions. [2023-12-02 13:12:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 13:12:19,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:12:19,989 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] [2023-12-02 13:12:19,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:12:20,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:12:20,190 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:12:20,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:12:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash 768989086, now seen corresponding path program 1 times [2023-12-02 13:12:20,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:12:20,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823543874] [2023-12-02 13:12:20,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:12:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:12:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:12:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:12:20,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:12:20,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823543874] [2023-12-02 13:12:20,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823543874] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:12:20,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712239870] [2023-12-02 13:12:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:12:20,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:12:20,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:12:20,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:12:20,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:12:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:12:20,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:12:20,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:12:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:12:20,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:12:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:12:20,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712239870] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:12:20,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [271043459] [2023-12-02 13:12:20,810 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 13:12:20,811 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:12:20,811 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:12:20,811 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:12:20,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:14:05,203 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 13:14:05,390 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 520 for LOIs [2023-12-02 13:14:07,181 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 529 for LOIs [2023-12-02 13:14:09,026 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 452 for LOIs [2023-12-02 13:14:09,888 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 13:14:10,062 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:15:05,664 WARN L293 SmtUtils]: Spent 10.63s on a formula simplification. DAG size of input: 557 DAG size of output: 552 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:15:16,728 WARN L293 SmtUtils]: Spent 10.66s on a formula simplification. DAG size of input: 558 DAG size of output: 552 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:16:03,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [271043459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:03,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:16:03,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:16:03,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258751490] [2023-12-02 13:16:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:03,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:16:03,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:16:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:16:03,367 INFO L87 Difference]: Start difference. First operand 347 states and 523 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 13:16:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:23,180 INFO L93 Difference]: Finished difference Result 707 states and 1096 transitions. [2023-12-02 13:16:23,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:16:23,181 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 86 [2023-12-02 13:16:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:23,184 INFO L225 Difference]: With dead ends: 707 [2023-12-02 13:16:23,184 INFO L226 Difference]: Without dead ends: 437 [2023-12-02 13:16:23,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 113.3s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:16:23,186 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 87 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 2948 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:23,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2873 Invalid, 2957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2948 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2023-12-02 13:16:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-12-02 13:16:23,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 383. [2023-12-02 13:16:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 275 states have (on average 1.461818181818182) internal successors, (402), 278 states have internal predecessors, (402), 85 states have call successors, (85), 22 states have call predecessors, (85), 22 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-02 13:16:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 571 transitions. [2023-12-02 13:16:23,371 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 571 transitions. Word has length 86 [2023-12-02 13:16:23,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:23,371 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 571 transitions. [2023-12-02 13:16:23,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 13:16:23,372 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 571 transitions. [2023-12-02 13:16:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 13:16:23,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:23,374 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] [2023-12-02 13:16:23,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:16:23,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:23,574 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:23,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:23,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1849365519, now seen corresponding path program 1 times [2023-12-02 13:16:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:23,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651548814] [2023-12-02 13:16:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:23,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:16:23,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:23,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651548814] [2023-12-02 13:16:23,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651548814] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:16:23,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250946878] [2023-12-02 13:16:23,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:23,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:23,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:23,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:16:23,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27f467fd-bc6e-4379-8861-156f13521326/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:16:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:24,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:16:24,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:16:24,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:16:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 13:16:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250946878] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:16:24,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [461581766] [2023-12-02 13:16:24,115 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2023-12-02 13:16:24,115 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:16:24,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:16:24,116 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:16:24,116 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:18:05,833 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 13:18:06,025 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 13:18:06,224 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:19:04,151 WARN L293 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 489 DAG size of output: 489 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:19:13,248 WARN L293 SmtUtils]: Spent 8.79s on a formula simplification. DAG size of input: 490 DAG size of output: 489 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:19:23,074 WARN L293 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 496 DAG size of output: 495 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:19:33,422 WARN L293 SmtUtils]: Spent 9.99s on a formula simplification. DAG size of input: 494 DAG size of output: 493 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:19:44,318 WARN L293 SmtUtils]: Spent 10.36s on a formula simplification. DAG size of input: 498 DAG size of output: 497 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:19:54,348 WARN L293 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 496 DAG size of output: 495 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:20:04,406 WARN L293 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 500 DAG size of output: 499 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:20:25,062 WARN L293 SmtUtils]: Spent 20.05s on a formula simplification. DAG size of input: 504 DAG size of output: 493 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)