./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/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_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/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_16650e90-de2a-4250-b143-2b77238969a8/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 d732923830fb3a71ab6990fcf85b09499ea996afd0bf98e12e19d094dda2a9f7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:44:01,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:44:01,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:44:01,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:44:01,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:44:01,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:44:01,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:44:01,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:44:01,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:44:01,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:44:01,928 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:44:01,928 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:44:01,929 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:44:01,929 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:44:01,930 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:44:01,930 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:44:01,931 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:44:01,931 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:44:01,931 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:44:01,932 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:44:01,933 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:44:01,933 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:44:01,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:44:01,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:44:01,935 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:44:01,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:44:01,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:44:01,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:44:01,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:44:01,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:44:01,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:44:01,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:44:01,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:44:01,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:44:01,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:44:01,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:44:01,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:44:01,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:44:01,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:44:01,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:44:01,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:44:01,947 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:44:01,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:44:01,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:44:01,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:44:01,947 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:44:01,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:44:01,948 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_16650e90-de2a-4250-b143-2b77238969a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d732923830fb3a71ab6990fcf85b09499ea996afd0bf98e12e19d094dda2a9f7 [2023-12-02 14:44:02,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:44:02,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:44:02,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:44:02,193 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:44:02,193 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:44:02,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2023-12-02 14:44:04,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:44:05,212 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:44:05,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2023-12-02 14:44:05,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/data/52ef23c2a/ae0e3d8d79584269a131cfe27ee1a967/FLAG6a6d56f91 [2023-12-02 14:44:05,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/data/52ef23c2a/ae0e3d8d79584269a131cfe27ee1a967 [2023-12-02 14:44:05,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:44:05,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:44:05,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:44:05,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:44:05,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:44:05,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:05,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf65e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05, skipping insertion in model container [2023-12-02 14:44:05,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:05,327 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:44:05,656 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_16650e90-de2a-4250-b143-2b77238969a8/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28349,28362] [2023-12-02 14:44:05,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:44:05,794 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:44:05,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-02 14:44:05,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [281] [2023-12-02 14:44:05,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [314] [2023-12-02 14:44:05,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [332] [2023-12-02 14:44:05,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [370] [2023-12-02 14:44:05,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [736] [2023-12-02 14:44:05,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1148] [2023-12-02 14:44:05,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1246] [2023-12-02 14:44:05,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2023-12-02 14:44:05,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1571] [2023-12-02 14:44:05,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1941] [2023-12-02 14:44:05,848 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_16650e90-de2a-4250-b143-2b77238969a8/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28349,28362] [2023-12-02 14:44:05,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:44:05,934 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:44:05,940 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:44:05,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05 WrapperNode [2023-12-02 14:44:05,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:44:05,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:44:05,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:44:05,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:44:05,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:05,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,029 INFO L138 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1153 [2023-12-02 14:44:06,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:44:06,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:44:06,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:44:06,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:44:06,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:44:06,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:44:06,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:44:06,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:44:06,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (1/1) ... [2023-12-02 14:44:06,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:44:06,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:44:06,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:44:06,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:44:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 14:44:06,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 14:44:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 14:44:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 14:44:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 14:44:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 14:44:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 14:44:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 14:44:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 14:44:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 14:44:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 14:44:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 14:44:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 14:44:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 14:44:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 14:44:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 14:44:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 14:44:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 14:44:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 14:44:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 14:44:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 14:44:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 14:44:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 14:44:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 14:44:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 14:44:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:44:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 14:44:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 14:44:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 14:44:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 14:44:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 14:44:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 14:44:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 14:44:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 14:44:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 14:44:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 14:44:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 14:44:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 14:44:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 14:44:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 14:44:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 14:44:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 14:44:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:44:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 14:44:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 14:44:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 14:44:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 14:44:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:44:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:44:06,366 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:44:06,369 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:44:07,105 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:44:07,588 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:44:07,588 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:44:07,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:44:07 BoogieIcfgContainer [2023-12-02 14:44:07,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:44:07,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:44:07,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:44:07,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:44:07,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:44:05" (1/3) ... [2023-12-02 14:44:07,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6ae3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:44:07, skipping insertion in model container [2023-12-02 14:44:07,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:44:05" (2/3) ... [2023-12-02 14:44:07,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6ae3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:44:07, skipping insertion in model container [2023-12-02 14:44:07,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:44:07" (3/3) ... [2023-12-02 14:44:07,596 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product27.cil.c [2023-12-02 14:44:07,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:44:07,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:44:07,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:44:07,660 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;@2680b65f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:44:07,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:44:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-02 14:44:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 14:44:07,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:44:07,679 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, 1, 1] [2023-12-02 14:44:07,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:44:07,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:44:07,684 INFO L85 PathProgramCache]: Analyzing trace with hash -152551959, now seen corresponding path program 1 times [2023-12-02 14:44:07,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:44:07,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139043350] [2023-12-02 14:44:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:44:07,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:44:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:44:07,981 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 14:44:07,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:44:07,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139043350] [2023-12-02 14:44:07,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139043350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:44:07,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:44:07,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:44:07,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765881164] [2023-12-02 14:44:07,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:44:07,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:44:07,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:44:08,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:44:08,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:44:08,017 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 14:44:08,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:44:08,141 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2023-12-02 14:44:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:44:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2023-12-02 14:44:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:44:08,154 INFO L225 Difference]: With dead ends: 290 [2023-12-02 14:44:08,154 INFO L226 Difference]: Without dead ends: 188 [2023-12-02 14:44:08,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:44:08,162 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:44:08,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:44:08,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-02 14:44:08,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-02 14:44:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-02 14:44:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2023-12-02 14:44:08,216 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 73 [2023-12-02 14:44:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:44:08,218 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2023-12-02 14:44:08,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 14:44:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2023-12-02 14:44:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 14:44:08,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:44:08,223 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, 1, 1, 1] [2023-12-02 14:44:08,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:44:08,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:44:08,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:44:08,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1598006681, now seen corresponding path program 1 times [2023-12-02 14:44:08,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:44:08,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518485346] [2023-12-02 14:44:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:44:08,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:44:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:44:08,451 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 14:44:08,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:44:08,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518485346] [2023-12-02 14:44:08,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518485346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:44:08,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:44:08,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:44:08,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192541109] [2023-12-02 14:44:08,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:44:08,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:44:08,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:44:08,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:44:08,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:44:08,455 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 14:44:08,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:44:08,576 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2023-12-02 14:44:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:44:08,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2023-12-02 14:44:08,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:44:08,580 INFO L225 Difference]: With dead ends: 286 [2023-12-02 14:44:08,580 INFO L226 Difference]: Without dead ends: 190 [2023-12-02 14:44:08,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:44:08,583 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:44:08,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:44:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-12-02 14:44:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-12-02 14:44:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-02 14:44:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2023-12-02 14:44:08,605 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 74 [2023-12-02 14:44:08,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:44:08,606 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2023-12-02 14:44:08,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 14:44:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2023-12-02 14:44:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 14:44:08,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:44:08,611 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] [2023-12-02 14:44:08,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:44:08,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:44:08,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:44:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1798908753, now seen corresponding path program 1 times [2023-12-02 14:44:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:44:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707311279] [2023-12-02 14:44:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:44:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:44:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:44:08,767 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 14:44:08,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:44:08,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707311279] [2023-12-02 14:44:08,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707311279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:44:08,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:44:08,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:44:08,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468239227] [2023-12-02 14:44:08,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:44:08,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:44:08,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:44:08,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:44:08,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:44:08,770 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 14:44:08,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:44:08,897 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2023-12-02 14:44:08,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:44:08,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2023-12-02 14:44:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:44:08,901 INFO L225 Difference]: With dead ends: 415 [2023-12-02 14:44:08,901 INFO L226 Difference]: Without dead ends: 243 [2023-12-02 14:44:08,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:44:08,904 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:44:08,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 436 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:44:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-02 14:44:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2023-12-02 14:44:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 14:44:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2023-12-02 14:44:08,933 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 79 [2023-12-02 14:44:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:44:08,934 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2023-12-02 14:44:08,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 14:44:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2023-12-02 14:44:08,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 14:44:08,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:44:08,937 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] [2023-12-02 14:44:08,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:44:08,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:44:08,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:44:08,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1463633821, now seen corresponding path program 1 times [2023-12-02 14:44:08,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:44:08,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170972177] [2023-12-02 14:44:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:44:08,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:44:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:44:09,109 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 14:44:09,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:44:09,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170972177] [2023-12-02 14:44:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170972177] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:44:09,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210097260] [2023-12-02 14:44:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:44:09,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:44:09,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:44:09,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:44:09,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:44:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:44:09,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:44:09,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:44:09,556 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 14:44:09,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:44:09,637 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 14:44:09,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210097260] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:44:09,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [301540634] [2023-12-02 14:44:09,658 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2023-12-02 14:44:09,658 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:44:09,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:44:09,667 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:44:09,668 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:44:48,881 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:44:49,037 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 14:44:49,194 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:45:52,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [301540634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:45:52,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:45:52,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 14:45:52,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179845154] [2023-12-02 14:45:52,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:45:52,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 14:45:52,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:45:52,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 14:45:52,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 14:45:52,504 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 14:46:01,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:46:01,031 INFO L93 Difference]: Finished difference Result 523 states and 774 transitions. [2023-12-02 14:46:01,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 14:46:01,032 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 80 [2023-12-02 14:46:01,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:46:01,035 INFO L225 Difference]: With dead ends: 523 [2023-12-02 14:46:01,035 INFO L226 Difference]: Without dead ends: 303 [2023-12-02 14:46:01,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 63.3s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 14:46:01,037 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 86 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:46:01,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2928 Invalid, 2142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 14:46:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-02 14:46:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 261. [2023-12-02 14:46:01,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 167 states have internal predecessors, (227), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 14:46:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 370 transitions. [2023-12-02 14:46:01,107 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 370 transitions. Word has length 80 [2023-12-02 14:46:01,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:46:01,107 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 370 transitions. [2023-12-02 14:46:01,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 14:46:01,108 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 370 transitions. [2023-12-02 14:46:01,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 14:46:01,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:46:01,111 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, 1, 1] [2023-12-02 14:46:01,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:46:01,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-02 14:46:01,314 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:46:01,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:46:01,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2043446704, now seen corresponding path program 1 times [2023-12-02 14:46:01,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:46:01,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780070804] [2023-12-02 14:46:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:01,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:46:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:01,405 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 14:46:01,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:46:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780070804] [2023-12-02 14:46:01,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780070804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:46:01,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:46:01,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:46:01,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518067610] [2023-12-02 14:46:01,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:46:01,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:46:01,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:46:01,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:46:01,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:46:01,408 INFO L87 Difference]: Start difference. First operand 261 states and 370 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 14:46:01,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:46:01,620 INFO L93 Difference]: Finished difference Result 625 states and 920 transitions. [2023-12-02 14:46:01,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:46:01,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 85 [2023-12-02 14:46:01,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:46:01,623 INFO L225 Difference]: With dead ends: 625 [2023-12-02 14:46:01,623 INFO L226 Difference]: Without dead ends: 388 [2023-12-02 14:46:01,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:46:01,625 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 57 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:46:01,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 428 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:46:01,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-02 14:46:01,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2023-12-02 14:46:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 256 states have (on average 1.43359375) internal successors, (367), 258 states have internal predecessors, (367), 103 states have call successors, (103), 23 states have call predecessors, (103), 23 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-02 14:46:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 572 transitions. [2023-12-02 14:46:01,733 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 572 transitions. Word has length 85 [2023-12-02 14:46:01,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:46:01,734 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 572 transitions. [2023-12-02 14:46:01,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 14:46:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 572 transitions. [2023-12-02 14:46:01,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 14:46:01,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:46:01,737 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, 1, 1, 1] [2023-12-02 14:46:01,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:46:01,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:46:01,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:46:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1457643719, now seen corresponding path program 1 times [2023-12-02 14:46:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:46:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114881706] [2023-12-02 14:46:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:01,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:46:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:01,883 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 14:46:01,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:46:01,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114881706] [2023-12-02 14:46:01,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114881706] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:46:01,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263199195] [2023-12-02 14:46:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:01,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:46:01,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:46:01,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:46:01,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:46:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:02,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:46:02,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:46:02,237 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 14:46:02,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:46:02,295 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 14:46:02,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263199195] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:46:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [114737135] [2023-12-02 14:46:02,302 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2023-12-02 14:46:02,302 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:46:02,304 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:46:02,305 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:46:02,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:47:02,396 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:47:02,557 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 480 for LOIs [2023-12-02 14:47:04,584 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:47:25,054 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 480 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:47:34,212 WARN L293 SmtUtils]: Spent 9.00s on a formula simplification. DAG size of input: 510 DAG size of output: 505 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:48:13,106 WARN L293 SmtUtils]: Spent 9.13s on a formula simplification. DAG size of input: 507 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:48:22,689 WARN L293 SmtUtils]: Spent 9.27s on a formula simplification. DAG size of input: 508 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:48:32,759 WARN L293 SmtUtils]: Spent 9.71s on a formula simplification. DAG size of input: 514 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:48:42,637 WARN L293 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 512 DAG size of output: 511 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:48:52,673 WARN L293 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 516 DAG size of output: 515 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:49:02,828 WARN L293 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 514 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:49:13,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [114737135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:49:13,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:49:13,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 14:49:13,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994880156] [2023-12-02 14:49:13,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:49:13,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 14:49:13,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:49:13,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 14:49:13,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 14:49:13,870 INFO L87 Difference]: Start difference. First operand 383 states and 572 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 14:49:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:49:28,221 INFO L93 Difference]: Finished difference Result 784 states and 1201 transitions. [2023-12-02 14:49:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 14:49:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 86 [2023-12-02 14:49:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:49:28,225 INFO L225 Difference]: With dead ends: 784 [2023-12-02 14:49:28,226 INFO L226 Difference]: Without dead ends: 464 [2023-12-02 14:49:28,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 129.3s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 14:49:28,228 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 176 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 2713 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:49:28,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 3342 Invalid, 2721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2713 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2023-12-02 14:49:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-02 14:49:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 397. [2023-12-02 14:49:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 268 states have (on average 1.4328358208955223) internal successors, (384), 270 states have internal predecessors, (384), 104 states have call successors, (104), 24 states have call predecessors, (104), 24 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-02 14:49:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 591 transitions. [2023-12-02 14:49:28,365 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 591 transitions. Word has length 86 [2023-12-02 14:49:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:49:28,365 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 591 transitions. [2023-12-02 14:49:28,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 14:49:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 591 transitions. [2023-12-02 14:49:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 14:49:28,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:49:28,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:49:28,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:49:28,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 14:49:28,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:49:28,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:49:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1978176077, now seen corresponding path program 1 times [2023-12-02 14:49:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:49:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396155441] [2023-12-02 14:49:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:28,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:49:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:28,728 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 14:49:28,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:49:28,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396155441] [2023-12-02 14:49:28,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396155441] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:49:28,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572611718] [2023-12-02 14:49:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:28,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:49:28,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:49:28,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:49:28,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:49:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:29,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:49:29,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:49:29,095 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 14:49:29,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:49:29,161 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 14:49:29,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572611718] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:49:29,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1425038269] [2023-12-02 14:49:29,165 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2023-12-02 14:49:29,165 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:49:29,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:49:29,166 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:49:29,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:50:53,639 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:50:53,795 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 539 for LOIs [2023-12-02 14:50:55,459 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 548 for LOIs [2023-12-02 14:50:57,194 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 471 for LOIs [2023-12-02 14:50:57,903 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 14:50:58,058 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:51:54,502 WARN L293 SmtUtils]: Spent 10.81s on a formula simplification. DAG size of input: 588 DAG size of output: 583 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:52:05,643 WARN L293 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 589 DAG size of output: 583 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:52:53,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1425038269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:52:53,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:52:53,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 14:52:53,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374214790] [2023-12-02 14:52:53,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:52:53,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 14:52:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:52:53,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 14:52:53,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 14:52:53,867 INFO L87 Difference]: Start difference. First operand 397 states and 591 transitions. Second operand has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 14:53:14,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:53:14,706 INFO L93 Difference]: Finished difference Result 809 states and 1236 transitions. [2023-12-02 14:53:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 14:53:14,707 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 89 [2023-12-02 14:53:14,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:53:14,710 INFO L225 Difference]: With dead ends: 809 [2023-12-02 14:53:14,710 INFO L226 Difference]: Without dead ends: 489 [2023-12-02 14:53:14,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 115.8s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 14:53:14,712 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 90 mSDsluCounter, 3217 mSDsCounter, 0 mSdLazyCounter, 3396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:53:14,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3413 Invalid, 3405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3396 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2023-12-02 14:53:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-02 14:53:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 433. [2023-12-02 14:53:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 298 states have (on average 1.429530201342282) internal successors, (426), 300 states have internal predecessors, (426), 107 states have call successors, (107), 27 states have call predecessors, (107), 27 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 14:53:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 639 transitions. [2023-12-02 14:53:14,879 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 639 transitions. Word has length 89 [2023-12-02 14:53:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:53:14,879 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 639 transitions. [2023-12-02 14:53:14,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 14:53:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 639 transitions. [2023-12-02 14:53:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 14:53:14,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:53:14,883 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:53:14,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 14:53:15,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 14:53:15,086 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:53:15,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:53:15,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1110686100, now seen corresponding path program 1 times [2023-12-02 14:53:15,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:53:15,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865163064] [2023-12-02 14:53:15,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:53:15,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:53:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:53:15,208 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 14:53:15,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:53:15,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865163064] [2023-12-02 14:53:15,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865163064] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:53:15,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836486197] [2023-12-02 14:53:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:53:15,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:53:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:53:15,210 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:53:15,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:53:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:53:15,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:53:15,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:53:15,527 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 14:53:15,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:53:15,579 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 14:53:15,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836486197] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:53:15,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256641867] [2023-12-02 14:53:15,582 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2023-12-02 14:53:15,583 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:53:15,583 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:53:15,583 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:53:15,583 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:54:24,729 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:54:24,885 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 14:54:25,037 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:55:20,746 WARN L293 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 512 DAG size of output: 512 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:55:30,276 WARN L293 SmtUtils]: Spent 9.24s on a formula simplification. DAG size of input: 513 DAG size of output: 512 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:55:40,659 WARN L293 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 519 DAG size of output: 518 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:55:50,960 WARN L293 SmtUtils]: Spent 9.95s on a formula simplification. DAG size of input: 517 DAG size of output: 516 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:56:01,460 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 521 DAG size of output: 520 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:56:11,680 WARN L293 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 519 DAG size of output: 518 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:56:37,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [256641867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:56:37,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:56:37,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 14:56:37,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956074863] [2023-12-02 14:56:37,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:56:37,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 14:56:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:56:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 14:56:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 14:56:37,971 INFO L87 Difference]: Start difference. First operand 433 states and 639 transitions. Second operand has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 14:56:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:56:51,123 INFO L93 Difference]: Finished difference Result 823 states and 1251 transitions. [2023-12-02 14:56:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 14:56:51,124 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 88 [2023-12-02 14:56:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:56:51,126 INFO L225 Difference]: With dead ends: 823 [2023-12-02 14:56:51,127 INFO L226 Difference]: Without dead ends: 503 [2023-12-02 14:56:51,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 132.9s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 14:56:51,129 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 72 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 3603 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-02 14:56:51,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 3603 Invalid, 2918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2023-12-02 14:56:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-02 14:56:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 453. [2023-12-02 14:56:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 318 states have (on average 1.4339622641509433) internal successors, (456), 320 states have internal predecessors, (456), 107 states have call successors, (107), 27 states have call predecessors, (107), 27 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 14:56:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 669 transitions. [2023-12-02 14:56:51,313 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 669 transitions. Word has length 88 [2023-12-02 14:56:51,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:56:51,313 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 669 transitions. [2023-12-02 14:56:51,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 14:56:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 669 transitions. [2023-12-02 14:56:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 14:56:51,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:56:51,315 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:56:51,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:56:51,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 14:56:51,516 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:56:51,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:56:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash -454834476, now seen corresponding path program 1 times [2023-12-02 14:56:51,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:56:51,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513098557] [2023-12-02 14:56:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:56:51,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:56:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:56:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 14:56:51,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:56:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513098557] [2023-12-02 14:56:51,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513098557] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:56:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800423878] [2023-12-02 14:56:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:56:51,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:56:51,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:56:51,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:56:51,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16650e90-de2a-4250-b143-2b77238969a8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 14:56:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:56:52,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:56:52,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:56:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:56:52,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:56:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:56:52,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800423878] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:56:52,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1632060453] [2023-12-02 14:56:52,133 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2023-12-02 14:56:52,134 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:56:52,134 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:56:52,134 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:56:52,134 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:57:46,331 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 14:57:46,487 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 482 for LOIs [2023-12-02 14:57:48,499 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:58:09,484 WARN L293 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 482 DAG size of output: 483 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:58:18,644 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)