./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product31.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_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/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_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/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_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/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 87743dcc2c25562bb963887f71637e8ebeccc1d21e21cc059ac68c446a3d9b4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:26,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:26,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:23:26,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:26,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:26,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:26,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:26,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:26,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:26,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:26,356 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:26,356 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:26,357 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:26,357 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:23:26,358 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:26,358 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:26,358 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:23:26,359 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:23:26,359 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:26,360 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:23:26,360 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:23:26,361 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:23:26,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:26,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:26,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:26,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:23:26,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:26,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:26,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:26,379 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:26,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:26,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:26,380 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:26,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:26,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:26,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:26,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:26,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:26,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:26,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:26,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:26,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:26,384 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:23:26,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:23:26,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:26,385 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:26,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:26,385 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_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87743dcc2c25562bb963887f71637e8ebeccc1d21e21cc059ac68c446a3d9b4f [2024-11-02 11:23:26,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:26,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:26,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:26,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:26,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:26,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec4_product31.cil.c Unable to find full path for "g++" [2024-11-02 11:23:28,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:29,215 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:29,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/sv-benchmarks/c/product-lines/email_spec4_product31.cil.c [2024-11-02 11:23:29,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/data/823bf2508/0b670d89d80043f288d1290f0045d2e0/FLAGa716ca3ac [2024-11-02 11:23:29,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/data/823bf2508/0b670d89d80043f288d1290f0045d2e0 [2024-11-02 11:23:29,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:29,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:29,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:29,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:29,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:29,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:29" (1/1) ... [2024-11-02 11:23:29,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4d9f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:29, skipping insertion in model container [2024-11-02 11:23:29,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:29" (1/1) ... [2024-11-02 11:23:29,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:29,767 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_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/sv-benchmarks/c/product-lines/email_spec4_product31.cil.c[26985,26998] [2024-11-02 11:23:30,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:30,083 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:30,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-02 11:23:30,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1128] [2024-11-02 11:23:30,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1137] [2024-11-02 11:23:30,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1503] [2024-11-02 11:23:30,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1810] [2024-11-02 11:23:30,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2222] [2024-11-02 11:23:30,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2580] [2024-11-02 11:23:30,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] [2024-11-02 11:23:30,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2742] [2024-11-02 11:23:30,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2777] [2024-11-02 11:23:30,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2794] [2024-11-02 11:23:30,156 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_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/sv-benchmarks/c/product-lines/email_spec4_product31.cil.c[26985,26998] [2024-11-02 11:23:30,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:30,300 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:30,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30 WrapperNode [2024-11-02 11:23:30,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:30,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:30,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:30,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:30,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,451 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1029 [2024-11-02 11:23:30,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:30,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:30,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:30,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:30,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:30,525 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:30,525 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:30,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:30,526 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (1/1) ... [2024-11-02 11:23:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:30,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:30,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:30,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 11:23:30,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 11:23:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 11:23:30,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 11:23:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 11:23:30,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 11:23:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 11:23:30,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 11:23:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 11:23:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 11:23:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 11:23:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 11:23:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 11:23:30,643 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 11:23:30,644 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 11:23:30,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 11:23:30,645 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 11:23:30,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 11:23:30,645 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 11:23:30,645 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 11:23:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 11:23:30,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 11:23:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 11:23:30,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 11:23:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 11:23:30,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 11:23:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-02 11:23:30,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-02 11:23:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 11:23:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 11:23:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 11:23:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 11:23:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 11:23:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 11:23:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-02 11:23:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-02 11:23:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 11:23:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 11:23:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 11:23:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 11:23:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 11:23:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 11:23:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 11:23:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 11:23:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:23:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 11:23:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 11:23:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:30,943 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:30,946 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:32,003 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:32,004 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:32,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:32,678 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:23:32,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:32 BoogieIcfgContainer [2024-11-02 11:23:32,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:32,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:32,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:32,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:32,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:29" (1/3) ... [2024-11-02 11:23:32,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512b7e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:32, skipping insertion in model container [2024-11-02 11:23:32,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:30" (2/3) ... [2024-11-02 11:23:32,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512b7e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:32, skipping insertion in model container [2024-11-02 11:23:32,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:32" (3/3) ... [2024-11-02 11:23:32,691 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product31.cil.c [2024-11-02 11:23:32,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:32,712 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:23:32,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:32,813 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;@56b2b171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:32,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:23:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-02 11:23:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-02 11:23:32,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:32,834 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:32,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:32,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:32,842 INFO L85 PathProgramCache]: Analyzing trace with hash 223408565, now seen corresponding path program 1 times [2024-11-02 11:23:32,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:32,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405484991] [2024-11-02 11:23:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:32,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:33,304 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 11:23:33,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:33,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405484991] [2024-11-02 11:23:33,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405484991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:33,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:33,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:33,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396527323] [2024-11-02 11:23:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:33,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:23:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:23:33,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:23:33,343 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 11:23:33,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:33,517 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2024-11-02 11:23:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:23:33,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 68 [2024-11-02 11:23:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:33,538 INFO L225 Difference]: With dead ends: 319 [2024-11-02 11:23:33,538 INFO L226 Difference]: Without dead ends: 198 [2024-11-02 11:23:33,543 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 11:23:33,546 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:33,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:33,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-02 11:23:33,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-02 11:23:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-02 11:23:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2024-11-02 11:23:33,632 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 68 [2024-11-02 11:23:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:33,634 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2024-11-02 11:23:33,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 11:23:33,634 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2024-11-02 11:23:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-02 11:23:33,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:33,640 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:33,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:23:33,641 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:33,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:33,643 INFO L85 PathProgramCache]: Analyzing trace with hash -775180977, now seen corresponding path program 1 times [2024-11-02 11:23:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:33,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963562267] [2024-11-02 11:23:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:34,027 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 11:23:34,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963562267] [2024-11-02 11:23:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963562267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:34,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:34,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:23:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180082597] [2024-11-02 11:23:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:34,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:34,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:34,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:34,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:34,037 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 11:23:34,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:34,249 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2024-11-02 11:23:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:23:34,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 69 [2024-11-02 11:23:34,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:34,257 INFO L225 Difference]: With dead ends: 315 [2024-11-02 11:23:34,258 INFO L226 Difference]: Without dead ends: 200 [2024-11-02 11:23:34,263 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 11:23:34,264 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:34,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:23:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-02 11:23:34,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-02 11:23:34,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-02 11:23:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2024-11-02 11:23:34,302 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 69 [2024-11-02 11:23:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:34,303 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2024-11-02 11:23:34,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 11:23:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2024-11-02 11:23:34,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-02 11:23:34,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:34,309 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:34,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:23:34,310 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:34,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 555608488, now seen corresponding path program 1 times [2024-11-02 11:23:34,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:34,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192485287] [2024-11-02 11:23:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:34,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:34,510 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 11:23:34,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:34,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192485287] [2024-11-02 11:23:34,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192485287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:34,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:34,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:23:34,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688899714] [2024-11-02 11:23:34,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:34,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:34,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:34,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:34,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:34,516 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 11:23:34,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:34,690 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2024-11-02 11:23:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:23:34,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2024-11-02 11:23:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:34,693 INFO L225 Difference]: With dead ends: 430 [2024-11-02 11:23:34,698 INFO L226 Difference]: Without dead ends: 248 [2024-11-02 11:23:34,699 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 11:23:34,700 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 57 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:34,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 467 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:34,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-02 11:23:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2024-11-02 11:23:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-02 11:23:34,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2024-11-02 11:23:34,741 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 74 [2024-11-02 11:23:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:34,743 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2024-11-02 11:23:34,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 11:23:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2024-11-02 11:23:34,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-02 11:23:34,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:34,753 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:34,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:23:34,753 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:34,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1454438849, now seen corresponding path program 1 times [2024-11-02 11:23:34,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:34,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277184197] [2024-11-02 11:23:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:34,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:35,014 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 11:23:35,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277184197] [2024-11-02 11:23:35,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277184197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:23:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171268984] [2024-11-02 11:23:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:35,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:35,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:35,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78797de3-10ad-4f27-bcdd-8b56c7f9af3a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:23:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:35,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:23:35,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:35,594 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 11:23:35,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:23:35,716 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 11:23:35,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171268984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:23:35,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [276859702] [2024-11-02 11:23:35,748 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2024-11-02 11:23:35,749 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:23:35,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:23:35,759 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:23:35,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs