./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product37.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_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/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_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/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_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/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 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:24:47,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:24:48,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:24:48,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:24:48,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:24:48,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:24:48,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:24:48,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:24:48,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:24:48,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:24:48,114 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:24:48,114 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:24:48,114 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:24:48,115 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:24:48,117 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:24:48,118 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:24:48,118 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:24:48,118 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:24:48,119 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:24:48,119 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:24:48,120 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:24:48,124 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:24:48,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:24:48,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:24:48,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:24:48,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:24:48,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:24:48,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:24:48,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:24:48,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:24:48,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:24:48,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:24:48,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:24:48,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:24:48,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:24:48,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:24:48,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:24:48,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:24:48,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:24:48,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:24:48,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:24:48,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:24:48,133 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:24:48,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:24:48,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:24:48,135 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:24:48,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:24:48,135 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_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 [2024-11-02 11:24:48,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:24:48,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:24:48,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:24:48,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:24:48,505 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:24:48,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c Unable to find full path for "g++" [2024-11-02 11:24:50,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:24:51,196 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:24:51,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2024-11-02 11:24:51,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/data/3619b9376/f0549063dc384407a51bfa1d1acf4563/FLAGb417c5c02 [2024-11-02 11:24:51,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/data/3619b9376/f0549063dc384407a51bfa1d1acf4563 [2024-11-02 11:24:51,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:24:51,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:24:51,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:24:51,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:24:51,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:24:51,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:24:51" (1/1) ... [2024-11-02 11:24:51,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258b2402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:51, skipping insertion in model container [2024-11-02 11:24:51,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:24:51" (1/1) ... [2024-11-02 11:24:51,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:24:51,780 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_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2024-11-02 11:24:52,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:24:52,248 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:24:52,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-02 11:24:52,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2024-11-02 11:24:52,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [384] [2024-11-02 11:24:52,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1455] [2024-11-02 11:24:52,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1686] [2024-11-02 11:24:52,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1721] [2024-11-02 11:24:52,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1738] [2024-11-02 11:24:52,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2146] [2024-11-02 11:24:52,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2512] [2024-11-02 11:24:52,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2576] [2024-11-02 11:24:52,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2595] [2024-11-02 11:24:52,269 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_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2024-11-02 11:24:52,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:24:52,424 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:24:52,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52 WrapperNode [2024-11-02 11:24:52,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:24:52,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:24:52,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:24:52,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:24:52,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,595 INFO L138 Inliner]: procedures = 124, calls = 170, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 834 [2024-11-02 11:24:52,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:24:52,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:24:52,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:24:52,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:24:52,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:24:52,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:24:52,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:24:52,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:24:52,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (1/1) ... [2024-11-02 11:24:52,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:24:52,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:52,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:24:52,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:24:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 11:24:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 11:24:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 11:24:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 11:24:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 11:24:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 11:24:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 11:24:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 11:24:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 11:24:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 11:24:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 11:24:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 11:24:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-02 11:24:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-02 11:24:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 11:24:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 11:24:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:24:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 11:24:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 11:24:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 11:24:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 11:24:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 11:24:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 11:24:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 11:24:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 11:24:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 11:24:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 11:24:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 11:24:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 11:24:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:24:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 11:24:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 11:24:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:24:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:24:53,063 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:24:53,066 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:24:54,151 INFO L? ?]: Removed 326 outVars from TransFormulas that were not future-live. [2024-11-02 11:24:54,151 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:24:54,791 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:24:54,792 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:24:54,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:54 BoogieIcfgContainer [2024-11-02 11:24:54,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:24:54,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:24:54,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:24:54,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:24:54,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:24:51" (1/3) ... [2024-11-02 11:24:54,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4274c227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:24:54, skipping insertion in model container [2024-11-02 11:24:54,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:52" (2/3) ... [2024-11-02 11:24:54,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4274c227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:24:54, skipping insertion in model container [2024-11-02 11:24:54,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:54" (3/3) ... [2024-11-02 11:24:54,807 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2024-11-02 11:24:54,830 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:24:54,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:24:54,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:24:54,962 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;@4466da56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:24:54,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:24:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-02 11:24:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-02 11:24:54,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:54,990 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 11:24:54,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:24:54,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2071751350, now seen corresponding path program 1 times [2024-11-02 11:24:55,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:55,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278965916] [2024-11-02 11:24:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:55,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:55,534 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 11:24:55,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:55,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278965916] [2024-11-02 11:24:55,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278965916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:55,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:24:55,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:24:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577451748] [2024-11-02 11:24:55,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:55,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:24:55,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:55,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:24:55,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:24:55,583 INFO L87 Difference]: Start difference. First operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) 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 11:24:55,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:55,714 INFO L93 Difference]: Finished difference Result 199 states and 266 transitions. [2024-11-02 11:24:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:24:55,719 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 11:24:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:55,732 INFO L225 Difference]: With dead ends: 199 [2024-11-02 11:24:55,732 INFO L226 Difference]: Without dead ends: 138 [2024-11-02 11:24:55,738 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 11:24:55,743 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:55,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:24:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-02 11:24:55,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-02 11:24:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 83 states have internal predecessors, (108), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-02 11:24:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 187 transitions. [2024-11-02 11:24:55,823 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 187 transitions. Word has length 60 [2024-11-02 11:24:55,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:55,824 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 187 transitions. [2024-11-02 11:24:55,825 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 11:24:55,825 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 187 transitions. [2024-11-02 11:24:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-02 11:24:55,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:55,834 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] [2024-11-02 11:24:55,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:24:55,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:24:55,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1192676577, now seen corresponding path program 1 times [2024-11-02 11:24:55,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:55,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772737070] [2024-11-02 11:24:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:55,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:56,130 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 11:24:56,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:56,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772737070] [2024-11-02 11:24:56,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772737070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:56,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:24:56,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:24:56,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611313168] [2024-11-02 11:24:56,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:56,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:24:56,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:56,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:24:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:24:56,134 INFO L87 Difference]: Start difference. First operand 138 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 11:24:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:56,263 INFO L93 Difference]: Finished difference Result 195 states and 254 transitions. [2024-11-02 11:24:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:24:56,264 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 11:24:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:56,267 INFO L225 Difference]: With dead ends: 195 [2024-11-02 11:24:56,269 INFO L226 Difference]: Without dead ends: 140 [2024-11-02 11:24:56,271 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 11:24:56,272 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 11:24:56,274 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 11:24:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-02 11:24:56,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-11-02 11:24:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 85 states have internal predecessors, (110), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-02 11:24:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 189 transitions. [2024-11-02 11:24:56,309 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 189 transitions. Word has length 61 [2024-11-02 11:24:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:56,310 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 189 transitions. [2024-11-02 11:24:56,310 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 11:24:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 189 transitions. [2024-11-02 11:24:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-02 11:24:56,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:56,317 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 11:24:56,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:24:56,318 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:24:56,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:56,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1752730475, now seen corresponding path program 1 times [2024-11-02 11:24:56,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720367125] [2024-11-02 11:24:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:56,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:56,555 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 11:24:56,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:56,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720367125] [2024-11-02 11:24:56,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720367125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:56,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:24:56,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:24:56,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383400577] [2024-11-02 11:24:56,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:56,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:24:56,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:56,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:24:56,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:24:56,566 INFO L87 Difference]: Start difference. First operand 140 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 11:24:56,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:56,702 INFO L93 Difference]: Finished difference Result 310 states and 437 transitions. [2024-11-02 11:24:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:24:56,703 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 11:24:56,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:56,705 INFO L225 Difference]: With dead ends: 310 [2024-11-02 11:24:56,705 INFO L226 Difference]: Without dead ends: 188 [2024-11-02 11:24:56,707 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 11:24:56,708 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 57 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 319 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 11:24:56,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 319 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:24:56,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-02 11:24:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2024-11-02 11:24:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 117 states have internal predecessors, (163), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-02 11:24:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 264 transitions. [2024-11-02 11:24:56,734 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 264 transitions. Word has length 66 [2024-11-02 11:24:56,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:56,735 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 264 transitions. [2024-11-02 11:24:56,735 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 11:24:56,735 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 264 transitions. [2024-11-02 11:24:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-02 11:24:56,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:56,738 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 11:24:56,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:24:56,739 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:24:56,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:56,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1116600124, now seen corresponding path program 1 times [2024-11-02 11:24:56,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:56,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099645136] [2024-11-02 11:24:56,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:56,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:57,025 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 11:24:57,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:57,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099645136] [2024-11-02 11:24:57,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099645136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:24:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348158854] [2024-11-02 11:24:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:57,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:57,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:57,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:24:57,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e23cc5e-7da7-4a84-88ab-549694d6c2fc/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:24:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:57,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:24:57,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:24:57,591 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 11:24:57,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:24:57,703 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 11:24:57,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348158854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:24:57,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [125680344] [2024-11-02 11:24:57,734 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-02 11:24:57,734 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:24:57,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:24:57,745 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:24:57,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs