./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.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_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/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_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/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_bb4d9516-0f97-4a53-aeef-7519721e984a/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 422986a7dcf99d4b0e96a15a0ba07b8ed6118724772e8af056de2de5bc5122f8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:25:44,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:25:45,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:25:45,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:25:45,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:25:45,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:25:45,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:25:45,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:25:45,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:25:45,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:25:45,056 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:25:45,056 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:25:45,057 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:25:45,057 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:25:45,058 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:25:45,058 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:25:45,058 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:25:45,059 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:25:45,059 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:25:45,060 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:25:45,060 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:25:45,064 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:25:45,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:25:45,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:25:45,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:25:45,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:25:45,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:25:45,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:25:45,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:25:45,067 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:25:45,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:25:45,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:25:45,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:25:45,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:25:45,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:25:45,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:25:45,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:25:45,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:25:45,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:25:45,072 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:25:45,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:25:45,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:25:45,073 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:25:45,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:25:45,074 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_bb4d9516-0f97-4a53-aeef-7519721e984a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422986a7dcf99d4b0e96a15a0ba07b8ed6118724772e8af056de2de5bc5122f8 [2024-11-02 12:25:45,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:25:45,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:25:45,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:25:45,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:25:45,392 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:25:45,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c Unable to find full path for "g++" [2024-11-02 12:25:47,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:25:47,767 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:25:47,767 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c [2024-11-02 12:25:47,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data/595f75169/6b835ca5cca14fe084e6b70731b22ee5/FLAG353d5bf7f [2024-11-02 12:25:47,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data/595f75169/6b835ca5cca14fe084e6b70731b22ee5 [2024-11-02 12:25:47,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:25:47,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:25:47,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:25:47,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:25:47,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:25:47,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:25:47" (1/1) ... [2024-11-02 12:25:47,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efc7c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:47, skipping insertion in model container [2024-11-02 12:25:47,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:25:47" (1/1) ... [2024-11-02 12:25:47,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:25:48,134 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_bb4d9516-0f97-4a53-aeef-7519721e984a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c[1259,1272] [2024-11-02 12:25:48,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:25:48,516 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:25:48,528 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_bb4d9516-0f97-4a53-aeef-7519721e984a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c[1259,1272] [2024-11-02 12:25:48,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:25:48,769 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:25:48,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48 WrapperNode [2024-11-02 12:25:48,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:25:48,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:25:48,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:25:48,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:25:48,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:48,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,053 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2137 [2024-11-02 12:25:49,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:25:49,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:25:49,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:25:49,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:25:49,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:25:49,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:25:49,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:25:49,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:25:49,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (1/1) ... [2024-11-02 12:25:49,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:25:49,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:25:49,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:25:49,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:25:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:25:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:25:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:25:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:25:49,857 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:25:49,859 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:25:52,696 INFO L? ?]: Removed 1339 outVars from TransFormulas that were not future-live. [2024-11-02 12:25:52,696 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:25:56,241 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:25:56,241 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:25:56,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:56 BoogieIcfgContainer [2024-11-02 12:25:56,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:25:56,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:25:56,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:25:56,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:25:56,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:25:47" (1/3) ... [2024-11-02 12:25:56,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680a0f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:56, skipping insertion in model container [2024-11-02 12:25:56,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:48" (2/3) ... [2024-11-02 12:25:56,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680a0f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:56, skipping insertion in model container [2024-11-02 12:25:56,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:56" (3/3) ... [2024-11-02 12:25:56,252 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p14.c [2024-11-02 12:25:56,272 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:25:56,272 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:25:56,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:25:56,355 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;@3ff89868, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:25:56,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:25:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:25:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:25:56,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:56,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:25:56,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:25:56,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:56,376 INFO L85 PathProgramCache]: Analyzing trace with hash 78751573, now seen corresponding path program 1 times [2024-11-02 12:25:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:56,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9425267] [2024-11-02 12:25:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:56,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:25:57,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:25:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:25:57,219 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:25:57,221 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:25:57,222 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:25:57,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:25:57,229 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:25:57,270 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:25:57,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:25:57 BoogieIcfgContainer [2024-11-02 12:25:57,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:25:57,277 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:25:57,277 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:25:57,277 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:25:57,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:56" (3/4) ... [2024-11-02 12:25:57,282 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:25:57,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:25:57,284 INFO L158 Benchmark]: Toolchain (without parser) took 9477.65ms. Allocated memory was 157.3MB in the beginning and 434.1MB in the end (delta: 276.8MB). Free memory was 121.7MB in the beginning and 276.0MB in the end (delta: -154.3MB). Peak memory consumption was 125.7MB. Max. memory is 16.1GB. [2024-11-02 12:25:57,285 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:25:57,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 962.33ms. Allocated memory is still 157.3MB. Free memory was 121.3MB in the beginning and 112.9MB in the end (delta: 8.3MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-02 12:25:57,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 282.59ms. Allocated memory is still 157.3MB. Free memory was 112.9MB in the beginning and 63.5MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-02 12:25:57,288 INFO L158 Benchmark]: Boogie Preprocessor took 407.55ms. Allocated memory is still 157.3MB. Free memory was 63.5MB in the beginning and 84.3MB in the end (delta: -20.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2024-11-02 12:25:57,289 INFO L158 Benchmark]: RCFGBuilder took 6779.68ms. Allocated memory was 157.3MB in the beginning and 434.1MB in the end (delta: 276.8MB). Free memory was 84.3MB in the beginning and 129.3MB in the end (delta: -45.0MB). Peak memory consumption was 265.3MB. Max. memory is 16.1GB. [2024-11-02 12:25:57,290 INFO L158 Benchmark]: TraceAbstraction took 1032.06ms. Allocated memory is still 434.1MB. Free memory was 128.2MB in the beginning and 277.1MB in the end (delta: -148.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:25:57,291 INFO L158 Benchmark]: Witness Printer took 6.51ms. Allocated memory is still 434.1MB. Free memory was 276.0MB in the beginning and 276.0MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:25:57,296 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 962.33ms. Allocated memory is still 157.3MB. Free memory was 121.3MB in the beginning and 112.9MB in the end (delta: 8.3MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 282.59ms. Allocated memory is still 157.3MB. Free memory was 112.9MB in the beginning and 63.5MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 407.55ms. Allocated memory is still 157.3MB. Free memory was 63.5MB in the beginning and 84.3MB in the end (delta: -20.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6779.68ms. Allocated memory was 157.3MB in the beginning and 434.1MB in the end (delta: 276.8MB). Free memory was 84.3MB in the beginning and 129.3MB in the end (delta: -45.0MB). Peak memory consumption was 265.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1032.06ms. Allocated memory is still 434.1MB. Free memory was 128.2MB in the beginning and 277.1MB in the end (delta: -148.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.51ms. Allocated memory is still 434.1MB. Free memory was 276.0MB in the beginning and 276.0MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 160, overapproximation of bitwiseAnd at line 150. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L35] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 3); [L36] const SORT_7 msb_SORT_7 = (SORT_7)1 << (3 - 1); [L38] const SORT_78 mask_SORT_78 = (SORT_78)-1 >> (sizeof(SORT_78) * 8 - 32); [L39] const SORT_78 msb_SORT_78 = (SORT_78)1 << (32 - 1); [L41] const SORT_107 mask_SORT_107 = (SORT_107)-1 >> (sizeof(SORT_107) * 8 - 4); [L42] const SORT_107 msb_SORT_107 = (SORT_107)1 << (4 - 1); [L44] const SORT_174 mask_SORT_174 = (SORT_174)-1 >> (sizeof(SORT_174) * 8 - 2); [L45] const SORT_174 msb_SORT_174 = (SORT_174)1 << (2 - 1); [L47] const SORT_7 var_8 = 0; [L48] const SORT_5 var_12 = 0; [L49] const SORT_7 var_16 = 2; [L50] const SORT_1 var_19 = 0; [L51] const SORT_3 var_26 = 0; [L52] const SORT_1 var_35 = 1; [L53] const SORT_7 var_57 = 1; [L54] const SORT_7 var_62 = 4; [L55] const SORT_7 var_64 = 5; [L56] const SORT_7 var_68 = 3; [L57] const SORT_78 var_80 = 0; [L58] const SORT_3 var_94 = 2; [L59] const SORT_7 var_124 = 7; [L60] const SORT_7 var_129 = 6; [L61] const SORT_3 var_183 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_171; [L67] SORT_3 input_172; [L68] SORT_3 input_173; [L69] SORT_3 input_182; [L70] SORT_3 input_192; [L71] SORT_3 input_193; [L72] SORT_3 input_194; [L73] SORT_3 input_197; [L74] SORT_3 input_216; [L75] SORT_3 input_217; [L76] SORT_3 input_218; [L77] SORT_3 input_221; [L78] SORT_3 input_223; [L79] SORT_174 input_237; [L80] SORT_174 input_238; [L81] SORT_174 input_239; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 [L83] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L84] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 [L84] SORT_5 state_13 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L85] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L86] SORT_3 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L87] SORT_3 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L88] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L89] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L90] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L91] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L92] SORT_3 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L93] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L94] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L95] SORT_3 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L97] SORT_7 init_10_arg_1 = var_8; [L98] state_9 = init_10_arg_1 [L99] SORT_5 init_14_arg_1 = var_12; [L100] state_13 = init_14_arg_1 [L101] SORT_1 init_21_arg_1 = var_19; [L102] state_20 = init_21_arg_1 [L103] SORT_3 init_28_arg_1 = var_26; [L104] state_27 = init_28_arg_1 [L105] SORT_3 init_30_arg_1 = var_26; [L106] state_29 = init_30_arg_1 [L107] SORT_3 init_40_arg_1 = var_26; [L108] state_39 = init_40_arg_1 [L109] SORT_3 init_42_arg_1 = var_26; [L110] state_41 = init_42_arg_1 [L111] SORT_3 init_44_arg_1 = var_26; [L112] state_43 = init_44_arg_1 [L113] SORT_3 init_46_arg_1 = var_26; [L114] state_45 = init_46_arg_1 [L115] SORT_3 init_48_arg_1 = var_26; [L116] state_47 = init_48_arg_1 [L117] SORT_3 init_50_arg_1 = var_26; [L118] state_49 = init_50_arg_1 [L119] SORT_3 init_52_arg_1 = var_26; [L120] state_51 = init_52_arg_1 [L121] SORT_3 init_54_arg_1 = var_26; [L122] state_53 = init_54_arg_1 VAL [mask_SORT_107=15, mask_SORT_174=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_7=7, state_13=0, state_20=0, state_27=0, state_29=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_9=0, var_124=7, var_129=6, var_16=2, var_183=31, var_19=0, var_26=0, var_35=1, var_57=1, var_62=4, var_64=5, var_68=3, var_80=0, var_8=0, var_94=2] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_171 = __VERIFIER_nondet_uchar() [L129] input_172 = __VERIFIER_nondet_uchar() [L130] input_173 = __VERIFIER_nondet_uchar() [L131] input_182 = __VERIFIER_nondet_uchar() [L132] input_192 = __VERIFIER_nondet_uchar() [L133] input_193 = __VERIFIER_nondet_uchar() [L134] input_194 = __VERIFIER_nondet_uchar() [L135] input_197 = __VERIFIER_nondet_uchar() [L136] input_216 = __VERIFIER_nondet_uchar() [L137] input_217 = __VERIFIER_nondet_uchar() [L138] input_218 = __VERIFIER_nondet_uchar() [L139] input_221 = __VERIFIER_nondet_uchar() [L140] input_223 = __VERIFIER_nondet_uchar() [L141] input_237 = __VERIFIER_nondet_uchar() [L142] input_238 = __VERIFIER_nondet_uchar() [L143] input_239 = __VERIFIER_nondet_uchar() [L146] SORT_7 var_11_arg_0 = state_9; [L147] SORT_1 var_11 = var_11_arg_0 >> 2; [L148] SORT_5 var_15_arg_0 = state_13; [L149] SORT_7 var_15 = var_15_arg_0 >> 9; [L150] EXPR var_15 & mask_SORT_7 [L150] var_15 = var_15 & mask_SORT_7 [L151] SORT_7 var_17_arg_0 = var_15; [L152] SORT_7 var_17_arg_1 = var_16; [L153] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L154] SORT_1 var_18_arg_0 = var_17; [L155] SORT_1 var_18 = ~var_18_arg_0; [L156] SORT_1 var_22_arg_0 = state_20; [L157] SORT_1 var_22 = ~var_22_arg_0; [L158] SORT_1 var_23_arg_0 = var_18; [L159] SORT_1 var_23_arg_1 = var_22; [L160] EXPR var_23_arg_0 | var_23_arg_1 [L160] SORT_1 var_23 = var_23_arg_0 | var_23_arg_1; [L161] SORT_1 var_24_arg_0 = var_11; [L162] SORT_1 var_24_arg_1 = var_23; [L163] EXPR var_24_arg_0 & var_24_arg_1 [L163] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L164] SORT_1 var_25_arg_0 = var_24; [L165] SORT_1 var_25 = ~var_25_arg_0; [L166] SORT_3 var_31_arg_0 = state_27; [L167] SORT_3 var_31_arg_1 = state_29; [L168] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L169] SORT_1 var_32_arg_0 = var_25; [L170] SORT_1 var_32_arg_1 = var_31; [L171] EXPR var_32_arg_0 | var_32_arg_1 [L171] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L172] SORT_1 var_36_arg_0 = var_32; [L173] SORT_1 var_36 = ~var_36_arg_0; [L174] SORT_1 var_37_arg_0 = var_35; [L175] SORT_1 var_37_arg_1 = var_36; [L176] EXPR var_37_arg_0 & var_37_arg_1 [L176] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L177] EXPR var_37 & mask_SORT_1 [L177] var_37 = var_37 & mask_SORT_1 [L178] SORT_1 bad_38_arg_0 = var_37; [L179] CALL __VERIFIER_assert(!(bad_38_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:25:57,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/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_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/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 422986a7dcf99d4b0e96a15a0ba07b8ed6118724772e8af056de2de5bc5122f8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:25:59,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:25:59,967 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-02 12:25:59,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:25:59,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:26:00,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:26:00,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:26:00,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:26:00,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:26:00,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:26:00,021 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:26:00,022 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:26:00,022 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:26:00,026 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:26:00,026 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:26:00,027 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:26:00,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:26:00,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:26:00,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:26:00,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:26:00,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:26:00,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:26:00,032 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:26:00,032 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:26:00,033 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:26:00,033 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:26:00,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:26:00,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:26:00,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:26:00,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:26:00,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:26:00,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:26:00,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:00,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:26:00,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:26:00,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:26:00,039 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:26:00,039 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:26:00,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:26:00,040 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:26:00,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:26:00,041 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_bb4d9516-0f97-4a53-aeef-7519721e984a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422986a7dcf99d4b0e96a15a0ba07b8ed6118724772e8af056de2de5bc5122f8 [2024-11-02 12:26:00,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:26:00,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:26:00,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:26:00,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:26:00,563 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:26:00,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c Unable to find full path for "g++" [2024-11-02 12:26:02,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:26:02,984 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:26:02,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c [2024-11-02 12:26:03,000 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data/75af32991/fd091534c91d4d6ba8aed84583ba7a52/FLAGdd83f0297 [2024-11-02 12:26:03,226 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/data/75af32991/fd091534c91d4d6ba8aed84583ba7a52 [2024-11-02 12:26:03,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:26:03,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:26:03,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:03,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:26:03,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:26:03,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:03" (1/1) ... [2024-11-02 12:26:03,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f2723c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:03, skipping insertion in model container [2024-11-02 12:26:03,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:03" (1/1) ... [2024-11-02 12:26:03,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:26:03,616 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_bb4d9516-0f97-4a53-aeef-7519721e984a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c[1259,1272] [2024-11-02 12:26:03,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:03,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:26:04,009 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_bb4d9516-0f97-4a53-aeef-7519721e984a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p14.c[1259,1272] [2024-11-02 12:26:04,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:04,178 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:26:04,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04 WrapperNode [2024-11-02 12:26:04,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:04,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:04,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:26:04,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:26:04,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,304 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1079 [2024-11-02 12:26:04,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:04,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:26:04,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:26:04,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:26:04,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:26:04,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:26:04,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:26:04,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:26:04,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (1/1) ... [2024-11-02 12:26:04,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:04,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:26:04,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:26:04,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:26:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:26:04,831 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:26:04,835 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:26:06,959 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-02 12:26:06,959 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:26:06,970 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:26:06,970 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:26:06,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:06 BoogieIcfgContainer [2024-11-02 12:26:06,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:26:06,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:26:06,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:26:06,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:26:06,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:26:03" (1/3) ... [2024-11-02 12:26:06,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be2a9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:06, skipping insertion in model container [2024-11-02 12:26:06,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:04" (2/3) ... [2024-11-02 12:26:06,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be2a9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:06, skipping insertion in model container [2024-11-02 12:26:06,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:06" (3/3) ... [2024-11-02 12:26:06,982 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p14.c [2024-11-02 12:26:07,005 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:26:07,006 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:26:07,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:26:07,092 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;@352e404e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:26:07,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:26:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:26:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:26:07,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:07,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:26:07,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:07,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:07,114 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-02 12:26:07,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:26:07,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694357241] [2024-11-02 12:26:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:07,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:26:07,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:26:07,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 12:26:07,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-02 12:26:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:07,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-02 12:26:07,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:26:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:26:07,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:26:07,701 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:26:07,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694357241] [2024-11-02 12:26:07,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694357241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:26:07,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:26:07,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:26:07,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335918927] [2024-11-02 12:26:07,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:26:07,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:26:07,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:26:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:26:07,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:26:07,744 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:26:07,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:26:07,858 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-02 12:26:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:26:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-02 12:26:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:26:07,868 INFO L225 Difference]: With dead ends: 18 [2024-11-02 12:26:07,869 INFO L226 Difference]: Without dead ends: 10 [2024-11-02 12:26:07,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:26:07,877 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:26:07,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:26:07,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-02 12:26:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-02 12:26:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:26:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-02 12:26:07,917 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-02 12:26:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:26:07,917 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-02 12:26:07,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:26:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-02 12:26:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 12:26:07,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:07,920 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-02 12:26:07,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-02 12:26:08,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:26:08,126 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:08,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-02 12:26:08,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:26:08,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532742854] [2024-11-02 12:26:08,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:08,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:26:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:26:08,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 12:26:08,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-02 12:26:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:08,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-02 12:26:08,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:26:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:26:08,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:26:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:26:09,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:26:09,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532742854] [2024-11-02 12:26:09,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532742854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:26:09,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1946996942] [2024-11-02 12:26:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:09,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 12:26:09,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 12:26:09,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 12:26:09,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb4d9516-0f97-4a53-aeef-7519721e984a/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-02 12:26:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:10,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-02 12:26:10,292 INFO L278 TraceCheckSpWp]: Computing forward predicates...