./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ --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 74a12e124f66b10df64ef68155d31c3be83012aab827a45870f5335a6569b75a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:58:33,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:58:33,309 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:58:33,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:58:33,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:58:33,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:58:33,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:58:33,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:58:33,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:58:33,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:58:33,348 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:58:33,349 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:58:33,350 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:58:33,350 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:58:33,351 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:58:33,352 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:58:33,352 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:58:33,353 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:58:33,354 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:58:33,354 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:58:33,355 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:58:33,356 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:58:33,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:58:33,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:58:33,358 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:58:33,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:58:33,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:58:33,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:58:33,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:58:33,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:58:33,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:58:33,362 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:58:33,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:58:33,363 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:58:33,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:58:33,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:58:33,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:33,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:58:33,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:58:33,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:58:33,368 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:58:33,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:58:33,369 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:58:33,370 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:58:33,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:58:33,370 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_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74a12e124f66b10df64ef68155d31c3be83012aab827a45870f5335a6569b75a [2023-11-19 04:58:33,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:58:33,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:58:33,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:58:33,759 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:58:33,760 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:58:33,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c [2023-11-19 04:58:37,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:58:37,632 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:58:37,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c [2023-11-19 04:58:37,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/data/403a8cb10/054db94ed556498692bf59a70ccac155/FLAG3b24c4873 [2023-11-19 04:58:37,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/data/403a8cb10/054db94ed556498692bf59a70ccac155 [2023-11-19 04:58:37,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:58:37,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:58:37,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:37,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:58:37,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:58:37,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:37" (1/1) ... [2023-11-19 04:58:37,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b93aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:37, skipping insertion in model container [2023-11-19 04:58:37,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:37" (1/1) ... [2023-11-19 04:58:37,787 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:58:38,052 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c[4289,4302] [2023-11-19 04:58:38,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:38,387 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:58:38,399 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-19 04:58:38,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [202] [2023-11-19 04:58:38,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [211] [2023-11-19 04:58:38,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [403] [2023-11-19 04:58:38,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [815] [2023-11-19 04:58:38,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1181] [2023-11-19 04:58:38,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1201] [2023-11-19 04:58:38,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2279] [2023-11-19 04:58:38,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2435] [2023-11-19 04:58:38,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2452] [2023-11-19 04:58:38,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2515] [2023-11-19 04:58:38,425 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c[4289,4302] [2023-11-19 04:58:38,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:38,650 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:58:38,660 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:58:38,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38 WrapperNode [2023-11-19 04:58:38,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:38,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:38,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:58:38,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:58:38,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,782 INFO L138 Inliner]: procedures = 107, calls = 125, calls flagged for inlining = 37, calls inlined = 30, statements flattened = 591 [2023-11-19 04:58:38,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:38,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:58:38,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:58:38,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:58:38,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:58:38,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:58:38,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:58:38,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:58:38,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (1/1) ... [2023-11-19 04:58:38,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:38,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:58:38,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:58:38,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:58:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 04:58:38,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 04:58:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 04:58:38,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 04:58:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 04:58:38,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 04:58:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 04:58:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 04:58:38,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 04:58:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:58:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 04:58:38,954 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 04:58:38,955 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 04:58:38,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 04:58:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 04:58:38,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 04:58:38,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:58:38,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:58:38,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:58:39,150 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:58:39,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:58:39,778 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:58:40,076 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:58:40,076 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:58:40,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:40 BoogieIcfgContainer [2023-11-19 04:58:40,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:58:40,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:58:40,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:58:40,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:58:40,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:58:37" (1/3) ... [2023-11-19 04:58:40,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b7e0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:40, skipping insertion in model container [2023-11-19 04:58:40,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:38" (2/3) ... [2023-11-19 04:58:40,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b7e0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:40, skipping insertion in model container [2023-11-19 04:58:40,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:40" (3/3) ... [2023-11-19 04:58:40,103 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product05.cil.c [2023-11-19 04:58:40,123 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:58:40,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:58:40,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:58:40,194 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f2aa37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:58:40,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:58:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 54 states have (on average 1.537037037037037) internal successors, (83), 56 states have internal predecessors, (83), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:58:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 04:58:40,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:40,213 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 04:58:40,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:40,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1196470066, now seen corresponding path program 1 times [2023-11-19 04:58:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601875416] [2023-11-19 04:58:40,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:40,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:40,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:58:40,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:40,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601875416] [2023-11-19 04:58:40,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601875416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:40,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:40,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:58:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747839156] [2023-11-19 04:58:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:40,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:58:40,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:40,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:58:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:58:40,693 INFO L87 Difference]: Start difference. First operand has 77 states, 54 states have (on average 1.537037037037037) internal successors, (83), 56 states have internal predecessors, (83), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:58:40,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:40,768 INFO L93 Difference]: Finished difference Result 120 states and 164 transitions. [2023-11-19 04:58:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:58:40,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 46 [2023-11-19 04:58:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:40,780 INFO L225 Difference]: With dead ends: 120 [2023-11-19 04:58:40,780 INFO L226 Difference]: Without dead ends: 74 [2023-11-19 04:58:40,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:58:40,787 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:40,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:58:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-19 04:58:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-19 04:58:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 04:58:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 104 transitions. [2023-11-19 04:58:40,875 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 104 transitions. Word has length 46 [2023-11-19 04:58:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:40,878 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 104 transitions. [2023-11-19 04:58:40,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:58:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 104 transitions. [2023-11-19 04:58:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 04:58:40,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:40,886 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 04:58:40,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:58:40,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:40,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:40,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1001967542, now seen corresponding path program 1 times [2023-11-19 04:58:40,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:40,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258279894] [2023-11-19 04:58:40,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:40,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:58:41,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258279894] [2023-11-19 04:58:41,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258279894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:41,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:41,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:41,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134118884] [2023-11-19 04:58:41,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:41,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:41,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:41,169 INFO L87 Difference]: Start difference. First operand 74 states and 104 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:58:41,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:41,286 INFO L93 Difference]: Finished difference Result 116 states and 152 transitions. [2023-11-19 04:58:41,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:41,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2023-11-19 04:58:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:41,291 INFO L225 Difference]: With dead ends: 116 [2023-11-19 04:58:41,292 INFO L226 Difference]: Without dead ends: 76 [2023-11-19 04:58:41,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:41,300 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:41,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:58:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-19 04:58:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-19 04:58:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 04:58:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 106 transitions. [2023-11-19 04:58:41,320 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 106 transitions. Word has length 47 [2023-11-19 04:58:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:41,321 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 106 transitions. [2023-11-19 04:58:41,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:58:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 106 transitions. [2023-11-19 04:58:41,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 04:58:41,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:41,327 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 04:58:41,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:58:41,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:41,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash -616896850, now seen corresponding path program 1 times [2023-11-19 04:58:41,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:41,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965098708] [2023-11-19 04:58:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:41,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:58:41,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:41,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965098708] [2023-11-19 04:58:41,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965098708] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:58:41,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271540032] [2023-11-19 04:58:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:41,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:58:41,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:58:41,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:58:41,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cfe5594-9bdc-429a-b702-d7445785cf67/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:58:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:41,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:58:41,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:58:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:58:42,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:58:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:58:42,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271540032] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:58:42,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1809664570] [2023-11-19 04:58:42,158 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-11-19 04:58:42,159 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:58:42,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:58:42,173 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:58:42,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:59:04,593 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 232 for LOIs [2023-11-19 04:59:04,840 INFO L180 IcfgInterpreter]: Interpretation finished