./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.3.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/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_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/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 64bit --witnessprinter.graph.data.programhash c2b9763053d8209ca386c76a4b5dd1b94d2904f50b164fa39381c27a12d976e9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:32:37,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:32:37,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:32:37,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:32:37,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:32:37,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:32:37,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:32:37,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:32:37,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:32:37,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:32:37,266 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:32:37,267 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:32:37,268 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:32:37,268 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:32:37,268 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:32:37,269 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:32:37,269 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:32:37,269 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:32:37,270 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:32:37,270 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:32:37,271 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:32:37,275 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:32:37,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:32:37,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:32:37,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:32:37,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:32:37,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:32:37,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:32:37,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:32:37,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:32:37,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:32:37,278 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:32:37,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:32:37,279 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:32:37,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:32:37,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:37,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:32:37,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:32:37,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:32:37,281 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:32:37,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:32:37,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:32:37,282 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:32:37,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:32:37,283 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_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2b9763053d8209ca386c76a4b5dd1b94d2904f50b164fa39381c27a12d976e9 [2024-11-02 12:32:37,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:32:37,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:32:37,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:32:37,614 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:32:37,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:32:37,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.3.prop1-back-serstep.c Unable to find full path for "g++" [2024-11-02 12:32:39,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:32:40,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:32:40,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.3.prop1-back-serstep.c [2024-11-02 12:32:40,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/data/ad90097ea/78733fb13de84c0380bbc84f0a9d5a7b/FLAG7fba4a18c [2024-11-02 12:32:40,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/data/ad90097ea/78733fb13de84c0380bbc84f0a9d5a7b [2024-11-02 12:32:40,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:32:40,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:32:40,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:40,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:32:40,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:32:40,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bbd4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40, skipping insertion in model container [2024-11-02 12:32:40,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:32:41,060 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_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.3.prop1-back-serstep.c[1173,1186] [2024-11-02 12:32:42,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:42,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:32:42,762 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_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.3.prop1-back-serstep.c[1173,1186] [2024-11-02 12:32:43,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:43,729 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:32:43,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43 WrapperNode [2024-11-02 12:32:43,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:43,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:43,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:32:43,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:32:43,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:44,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:48,690 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42500 [2024-11-02 12:32:48,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:48,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:32:48,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:32:48,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:32:48,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:48,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:50,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:50,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:51,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:51,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:52,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:52,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:53,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:32:53,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:32:53,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:32:53,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:32:53,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:43" (1/1) ... [2024-11-02 12:32:53,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:53,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:32:53,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:32:53,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abc4bc0-ab70-48d1-9b0d-6b5c9d282b4a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:32:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:32:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:32:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:32:53,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:32:55,377 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:32:55,379 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation