./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2 --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 58fd69d2f74506159a7a57598b08a18ff098ebf1233f7e6688a335d4e30dd566 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:26:25,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:26:25,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:26:25,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:26:25,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:26:25,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:26:25,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:26:25,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:26:25,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:26:25,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:26:25,795 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:26:25,795 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:26:25,796 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:26:25,797 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:26:25,797 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:26:25,797 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:26:25,798 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:26:25,798 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:26:25,799 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:26:25,800 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:26:25,800 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:26:25,801 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:26:25,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:26:25,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:26:25,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:26:25,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:26:25,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:26:25,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:26:25,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:26:25,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:26:25,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:26:25,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:26:25,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:26:25,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:26:25,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:26:25,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:26:25,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:26:25,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:26:25,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:25,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:26:25,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:26:25,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:26:25,814 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:26:25,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:26:25,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:26:25,815 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:26:25,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:26:25,816 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_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fd69d2f74506159a7a57598b08a18ff098ebf1233f7e6688a335d4e30dd566 [2024-11-02 12:26:26,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:26:26,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:26:26,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:26:26,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:26:26,187 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:26:26,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec11_product18.cil.c Unable to find full path for "g++" [2024-11-02 12:26:28,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:26:28,583 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:26:28,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/sv-benchmarks/c/product-lines/email_spec11_product18.cil.c [2024-11-02 12:26:28,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/data/ba2429ee0/bd49941b1be249599daa1df98aec35df/FLAGed468bd7b [2024-11-02 12:26:28,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/data/ba2429ee0/bd49941b1be249599daa1df98aec35df [2024-11-02 12:26:28,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:26:28,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:26:28,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:28,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:26:28,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:26:28,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:28" (1/1) ... [2024-11-02 12:26:28,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f94b9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:28, skipping insertion in model container [2024-11-02 12:26:28,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:28" (1/1) ... [2024-11-02 12:26:29,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:26:29,772 WARN L251 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_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/sv-benchmarks/c/product-lines/email_spec11_product18.cil.c[57905,57918] [2024-11-02 12:26:29,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:29,835 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:26:29,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-02 12:26:29,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [167] [2024-11-02 12:26:29,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [392] [2024-11-02 12:26:29,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [409] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [447] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [851] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1931] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2297] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2591] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2600] [2024-11-02 12:26:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2619] [2024-11-02 12:26:29,957 WARN L251 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_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/sv-benchmarks/c/product-lines/email_spec11_product18.cil.c[57905,57918] [2024-11-02 12:26:29,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:30,003 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:26:30,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30 WrapperNode [2024-11-02 12:26:30,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:30,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:30,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:26:30,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:26:30,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,100 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 911 [2024-11-02 12:26:30,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:30,102 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:26:30,102 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:26:30,102 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:26:30,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:26:30,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:26:30,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:26:30,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:26:30,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (1/1) ... [2024-11-02 12:26:30,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:30,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:26:30,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:26:30,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:26:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:26:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:26:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:26:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:26:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:26:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:26:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:26:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:26:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:26:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:26:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:26:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:26:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:26:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:26:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:26:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:26:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:26:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:26:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:26:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:26:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:26:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:26:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:26:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:26:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:26:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:26:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:26:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:26:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:26:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:26:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:26:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:26:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:26:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:26:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:26:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:26:30,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:26:30,489 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:26:31,625 INFO L? ?]: Removed 396 outVars from TransFormulas that were not future-live. [2024-11-02 12:26:31,625 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:26:32,315 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:26:32,315 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:26:32,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:32 BoogieIcfgContainer [2024-11-02 12:26:32,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:26:32,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:26:32,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:26:32,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:26:32,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:26:28" (1/3) ... [2024-11-02 12:26:32,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b20fe75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:32, skipping insertion in model container [2024-11-02 12:26:32,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:30" (2/3) ... [2024-11-02 12:26:32,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b20fe75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:32, skipping insertion in model container [2024-11-02 12:26:32,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:32" (3/3) ... [2024-11-02 12:26:32,330 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product18.cil.c [2024-11-02 12:26:32,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:26:32,351 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:26:32,436 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:26:32,445 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bd0fd74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:26:32,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:26:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-02 12:26:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-02 12:26:32,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:32,470 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:26:32,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:32,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash 987135595, now seen corresponding path program 1 times [2024-11-02 12:26:32,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:26:32,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522521011] [2024-11-02 12:26:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:32,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:26:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:26:32,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:26:32,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522521011] [2024-11-02 12:26:32,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522521011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:26:32,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:26:32,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:26:32,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236696943] [2024-11-02 12:26:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:26:32,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:26:32,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:26:32,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:26:32,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:26:32,984 INFO L87 Difference]: Start difference. First operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:26:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:26:33,209 INFO L93 Difference]: Finished difference Result 201 states and 266 transitions. [2024-11-02 12:26:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:26:33,212 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 60 [2024-11-02 12:26:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:26:33,224 INFO L225 Difference]: With dead ends: 201 [2024-11-02 12:26:33,224 INFO L226 Difference]: Without dead ends: 139 [2024-11-02 12:26:33,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:26:33,235 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:26:33,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:26:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-02 12:26:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-02 12:26:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 85 states have internal predecessors, (112), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-02 12:26:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 187 transitions. [2024-11-02 12:26:33,296 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 187 transitions. Word has length 60 [2024-11-02 12:26:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:26:33,298 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 187 transitions. [2024-11-02 12:26:33,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:26:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 187 transitions. [2024-11-02 12:26:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-02 12:26:33,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:33,303 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:26:33,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:26:33,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:33,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:33,305 INFO L85 PathProgramCache]: Analyzing trace with hash 799079826, now seen corresponding path program 1 times [2024-11-02 12:26:33,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:26:33,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265558052] [2024-11-02 12:26:33,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:33,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:26:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:26:33,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:26:33,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265558052] [2024-11-02 12:26:33,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265558052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:26:33,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:26:33,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:26:33,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929243803] [2024-11-02 12:26:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:26:33,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:26:33,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:26:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:26:33,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:26:33,686 INFO L87 Difference]: Start difference. First operand 139 states and 187 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:26:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:26:33,835 INFO L93 Difference]: Finished difference Result 197 states and 254 transitions. [2024-11-02 12:26:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:26:33,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2024-11-02 12:26:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:26:33,838 INFO L225 Difference]: With dead ends: 197 [2024-11-02 12:26:33,838 INFO L226 Difference]: Without dead ends: 141 [2024-11-02 12:26:33,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:26:33,840 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:26:33,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:26:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-02 12:26:33,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-02 12:26:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 87 states have internal predecessors, (114), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-02 12:26:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 189 transitions. [2024-11-02 12:26:33,859 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 189 transitions. Word has length 61 [2024-11-02 12:26:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:26:33,859 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 189 transitions. [2024-11-02 12:26:33,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:26:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 189 transitions. [2024-11-02 12:26:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-02 12:26:33,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:33,863 INFO L215 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] [2024-11-02 12:26:33,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:26:33,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:33,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1874835254, now seen corresponding path program 1 times [2024-11-02 12:26:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:26:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401830090] [2024-11-02 12:26:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:33,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:26:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:26:33,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:26:33,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401830090] [2024-11-02 12:26:33,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401830090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:26:33,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:26:34,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:26:34,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418900847] [2024-11-02 12:26:34,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:26:34,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:26:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:26:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:26:34,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:26:34,002 INFO L87 Difference]: Start difference. First operand 141 states and 189 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:26:34,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:26:34,140 INFO L93 Difference]: Finished difference Result 312 states and 437 transitions. [2024-11-02 12:26:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:26:34,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2024-11-02 12:26:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:26:34,144 INFO L225 Difference]: With dead ends: 312 [2024-11-02 12:26:34,144 INFO L226 Difference]: Without dead ends: 189 [2024-11-02 12:26:34,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:26:34,150 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 57 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:26:34,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 328 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:26:34,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-02 12:26:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2024-11-02 12:26:34,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 119 states have internal predecessors, (167), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-02 12:26:34,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 264 transitions. [2024-11-02 12:26:34,191 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 264 transitions. Word has length 66 [2024-11-02 12:26:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:26:34,192 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 264 transitions. [2024-11-02 12:26:34,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:26:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 264 transitions. [2024-11-02 12:26:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-02 12:26:34,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:34,198 INFO L215 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] [2024-11-02 12:26:34,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:26:34,199 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:34,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:34,199 INFO L85 PathProgramCache]: Analyzing trace with hash 783591713, now seen corresponding path program 1 times [2024-11-02 12:26:34,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:26:34,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354249957] [2024-11-02 12:26:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:34,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:26:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:26:34,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:26:34,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354249957] [2024-11-02 12:26:34,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354249957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:26:34,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757316123] [2024-11-02 12:26:34,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:34,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:26:34,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:26:34,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:26:34,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09b232de-dd2a-4b78-ab49-d3cd5c65e88d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:26:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:34,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:26:34,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:26:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:26:35,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:26:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 12:26:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757316123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:26:35,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907620697] [2024-11-02 12:26:35,151 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-02 12:26:35,152 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:26:35,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:26:35,163 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:26:35,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs