./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje --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 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:15:17,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:15:17,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:15:17,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:15:17,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:15:18,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:15:18,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:15:18,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:15:18,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:15:18,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:15:18,048 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:15:18,048 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:15:18,049 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:15:18,049 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:15:18,050 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:15:18,050 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:15:18,050 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:15:18,051 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:15:18,051 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:15:18,052 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:15:18,052 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:15:18,053 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:15:18,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:15:18,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:15:18,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:15:18,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:15:18,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:15:18,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:15:18,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:15:18,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:15:18,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:15:18,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:15:18,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:15:18,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:15:18,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:15:18,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:15:18,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:15:18,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:15:18,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:15:18,060 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:15:18,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:15:18,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:15:18,061 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:15:18,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:15:18,062 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_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 [2024-11-09 05:15:18,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:15:18,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:15:18,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:15:18,412 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:15:18,412 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:15:18,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c Unable to find full path for "g++" [2024-11-09 05:15:20,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:15:20,970 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:15:20,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-09 05:15:20,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data/a5341612d/79c15c8be68143d094d603f923edfd84/FLAG530119845 [2024-11-09 05:15:21,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data/a5341612d/79c15c8be68143d094d603f923edfd84 [2024-11-09 05:15:21,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:15:21,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:15:21,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:15:21,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:15:21,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:15:21,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:21,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abc69a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21, skipping insertion in model container [2024-11-09 05:15:21,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:21,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:15:21,559 WARN L250 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_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-09 05:15:21,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:15:21,727 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:15:21,738 WARN L250 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_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-09 05:15:21,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:15:21,845 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:15:21,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21 WrapperNode [2024-11-09 05:15:21,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:15:21,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:15:21,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:15:21,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:15:21,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:21,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:21,980 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 619 [2024-11-09 05:15:21,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:15:21,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:15:21,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:15:21,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:15:21,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:21,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:15:22,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:15:22,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:15:22,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:15:22,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (1/1) ... [2024-11-09 05:15:22,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:15:22,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:22,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:15:22,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:15:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:15:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:15:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:15:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:15:22,402 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:15:22,408 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:15:23,502 INFO L? ?]: Removed 316 outVars from TransFormulas that were not future-live. [2024-11-09 05:15:23,503 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:15:24,495 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:15:24,496 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:15:24,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:24 BoogieIcfgContainer [2024-11-09 05:15:24,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:15:24,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:15:24,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:15:24,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:15:24,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:15:21" (1/3) ... [2024-11-09 05:15:24,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd19817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:24, skipping insertion in model container [2024-11-09 05:15:24,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:21" (2/3) ... [2024-11-09 05:15:24,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd19817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:24, skipping insertion in model container [2024-11-09 05:15:24,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:24" (3/3) ... [2024-11-09 05:15:24,510 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-09 05:15:24,535 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:15:24,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:15:24,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:15:24,641 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;@6a4e1d24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:15:24,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:15:24,648 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) [2024-11-09 05:15:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:15:24,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:24,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:15:24,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:24,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:24,669 INFO L85 PathProgramCache]: Analyzing trace with hash 17666826, now seen corresponding path program 1 times [2024-11-09 05:15:24,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:24,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959916387] [2024-11-09 05:15:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:24,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:15:25,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:15:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:15:25,427 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:15:25,430 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:15:25,432 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:15:25,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:15:25,441 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:15:25,480 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:15:25,497 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:15:25,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:15:25 BoogieIcfgContainer [2024-11-09 05:15:25,506 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:15:25,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:15:25,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:15:25,508 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:15:25,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:24" (3/4) ... [2024-11-09 05:15:25,513 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:15:25,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:15:25,517 INFO L158 Benchmark]: Toolchain (without parser) took 4262.60ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 59.6MB in the beginning and 87.8MB in the end (delta: -28.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-11-09 05:15:25,517 INFO L158 Benchmark]: CDTParser took 1.48ms. Allocated memory is still 121.6MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:15:25,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.17ms. Allocated memory is still 159.4MB. Free memory was 132.0MB in the beginning and 111.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-09 05:15:25,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.77ms. Allocated memory is still 159.4MB. Free memory was 111.5MB in the beginning and 99.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:15:25,522 INFO L158 Benchmark]: Boogie Preprocessor took 94.68ms. Allocated memory is still 159.4MB. Free memory was 99.5MB in the beginning and 94.1MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:15:25,523 INFO L158 Benchmark]: RCFGBuilder took 2419.37ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.1MB in the beginning and 127.7MB in the end (delta: -33.6MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-09 05:15:25,524 INFO L158 Benchmark]: TraceAbstraction took 1006.55ms. Allocated memory is still 195.0MB. Free memory was 127.7MB in the beginning and 88.9MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 05:15:25,525 INFO L158 Benchmark]: Witness Printer took 8.20ms. Allocated memory is still 195.0MB. Free memory was 88.9MB in the beginning and 87.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:15:25,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48ms. Allocated memory is still 121.6MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.17ms. Allocated memory is still 159.4MB. Free memory was 132.0MB in the beginning and 111.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.77ms. Allocated memory is still 159.4MB. Free memory was 111.5MB in the beginning and 99.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.68ms. Allocated memory is still 159.4MB. Free memory was 99.5MB in the beginning and 94.1MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2419.37ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.1MB in the beginning and 127.7MB in the end (delta: -33.6MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1006.55ms. Allocated memory is still 195.0MB. Free memory was 127.7MB in the beginning and 88.9MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 8.20ms. Allocated memory is still 195.0MB. Free memory was 88.9MB in the beginning and 87.8MB in the end (delta: 1.0MB). 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 144, overapproximation of bitwiseAnd at line 110. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2); [L33] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1); [L35] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 3); [L36] const SORT_59 msb_SORT_59 = (SORT_59)1 << (3 - 1); [L38] const SORT_16 var_17 = 0; [L39] const SORT_16 var_20 = 3; [L40] const SORT_3 var_22 = 1; [L41] const SORT_3 var_36 = 0; [L42] const SORT_16 var_77 = 2; [L43] const SORT_16 var_80 = 1; [L44] const SORT_59 var_92 = 0; [L46] SORT_1 input_2; [L47] SORT_3 input_4; [L48] SORT_1 input_5; [L49] SORT_3 input_6; [L50] SORT_3 input_7; [L51] SORT_3 input_8; [L52] SORT_1 input_9; [L53] SORT_3 input_10; [L54] SORT_3 input_11; [L55] SORT_1 input_12; [L56] SORT_3 input_13; [L57] SORT_3 input_14; [L58] SORT_3 input_15; [L59] SORT_1 input_32; [L60] SORT_3 input_34; [L61] SORT_1 input_39; [L62] SORT_3 input_41; [L63] SORT_1 input_47; [L64] SORT_1 input_53; [L65] SORT_1 input_55; [L66] SORT_1 input_57; [L67] SORT_59 input_60; [L68] SORT_59 input_66; [L69] SORT_1 input_69; [L70] SORT_3 input_73; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 [L72] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L73] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L74] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L75] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L76] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L77] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L78] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L79] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L80] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L81] SORT_3 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L83] SORT_16 init_19_arg_1 = var_17; [L84] state_18 = init_19_arg_1 [L85] SORT_3 init_24_arg_1 = var_22; [L86] state_23 = init_24_arg_1 [L87] SORT_3 init_38_arg_1 = var_36; [L88] state_37 = init_38_arg_1 [L89] SORT_3 init_44_arg_1 = var_36; [L90] state_43 = init_44_arg_1 [L91] SORT_3 init_46_arg_1 = var_36; [L92] state_45 = init_46_arg_1 [L93] SORT_3 init_50_arg_1 = var_36; [L94] state_49 = init_50_arg_1 [L95] SORT_3 init_52_arg_1 = var_36; [L96] state_51 = init_52_arg_1 [L97] SORT_3 init_63_arg_1 = var_36; [L98] state_62 = init_63_arg_1 [L99] SORT_3 init_65_arg_1 = var_36; [L100] state_64 = init_65_arg_1 [L101] SORT_3 init_72_arg_1 = var_36; [L102] state_71 = init_72_arg_1 VAL [mask_SORT_16=3, mask_SORT_3=1, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L105] input_2 = __VERIFIER_nondet_uint() [L106] input_4 = __VERIFIER_nondet_uchar() [L107] input_5 = __VERIFIER_nondet_uint() [L108] input_6 = __VERIFIER_nondet_uchar() [L109] input_7 = __VERIFIER_nondet_uchar() [L110] EXPR input_7 & mask_SORT_3 [L110] input_7 = input_7 & mask_SORT_3 [L111] input_8 = __VERIFIER_nondet_uchar() [L112] EXPR input_8 & mask_SORT_3 [L112] input_8 = input_8 & mask_SORT_3 [L113] input_9 = __VERIFIER_nondet_uint() [L114] input_10 = __VERIFIER_nondet_uchar() [L115] EXPR input_10 & mask_SORT_3 [L115] input_10 = input_10 & mask_SORT_3 [L116] input_11 = __VERIFIER_nondet_uchar() [L117] EXPR input_11 & mask_SORT_3 [L117] input_11 = input_11 & mask_SORT_3 [L118] input_12 = __VERIFIER_nondet_uint() [L119] input_13 = __VERIFIER_nondet_uchar() [L120] input_14 = __VERIFIER_nondet_uchar() [L121] input_15 = __VERIFIER_nondet_uchar() [L122] input_32 = __VERIFIER_nondet_uint() [L123] input_34 = __VERIFIER_nondet_uchar() [L124] input_39 = __VERIFIER_nondet_uint() [L125] input_41 = __VERIFIER_nondet_uchar() [L126] input_47 = __VERIFIER_nondet_uint() [L127] input_53 = __VERIFIER_nondet_uint() [L128] input_55 = __VERIFIER_nondet_uint() [L129] input_57 = __VERIFIER_nondet_uint() [L130] input_60 = __VERIFIER_nondet_uchar() [L131] input_66 = __VERIFIER_nondet_uchar() [L132] input_69 = __VERIFIER_nondet_uint() [L133] input_73 = __VERIFIER_nondet_uchar() [L136] SORT_16 var_21_arg_0 = state_18; [L137] SORT_16 var_21_arg_1 = var_20; [L138] SORT_3 var_21 = var_21_arg_0 != var_21_arg_1; [L139] SORT_3 var_25_arg_0 = state_23; [L140] SORT_3 var_25_arg_1 = var_22; [L141] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L142] SORT_3 var_26_arg_0 = var_21; [L143] SORT_3 var_26_arg_1 = var_25; [L144] EXPR var_26_arg_0 | var_26_arg_1 [L144] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L145] SORT_3 var_29_arg_0 = var_26; [L146] SORT_3 var_29 = ~var_29_arg_0; [L147] SORT_3 var_30_arg_0 = var_22; [L148] SORT_3 var_30_arg_1 = var_29; [L149] EXPR var_30_arg_0 & var_30_arg_1 [L149] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; [L150] EXPR var_30 & mask_SORT_3 [L150] var_30 = var_30 & mask_SORT_3 [L151] SORT_3 bad_31_arg_0 = var_30; [L152] CALL __VERIFIER_assert(!(bad_31_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: 0.8s, 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, 0.4s 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 [2024-11-09 05:15:25,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje --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 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:15:28,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:15:28,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-09 05:15:28,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:15:28,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:15:28,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:15:28,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:15:28,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:15:28,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:15:28,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:15:28,714 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:15:28,715 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:15:28,715 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:15:28,718 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:15:28,719 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:15:28,719 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:15:28,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:15:28,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:15:28,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:15:28,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:15:28,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:15:28,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:15:28,730 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:15:28,734 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:15:28,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:15:28,735 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:15:28,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:15:28,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:15:28,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:15:28,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:15:28,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:15:28,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:15:28,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:15:28,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:15:28,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:15:28,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:15:28,741 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:15:28,741 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:15:28,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:15:28,742 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:15:28,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 [2024-11-09 05:15:29,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:15:29,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:15:29,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:15:29,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:15:29,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:15:29,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c Unable to find full path for "g++" [2024-11-09 05:15:31,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:15:32,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:15:32,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-09 05:15:32,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data/bd9676337/018b3e18eab0467c927d79203d7d73b2/FLAG1e43b89ef [2024-11-09 05:15:32,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/data/bd9676337/018b3e18eab0467c927d79203d7d73b2 [2024-11-09 05:15:32,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:15:32,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:15:32,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:15:32,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:15:32,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:15:32,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:32,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b355625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32, skipping insertion in model container [2024-11-09 05:15:32,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:32,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:15:32,447 WARN L250 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_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-09 05:15:32,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:15:32,707 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:15:32,734 WARN L250 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_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-09 05:15:32,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:15:32,911 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:15:32,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32 WrapperNode [2024-11-09 05:15:32,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:15:32,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:15:32,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:15:32,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:15:32,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:32,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,044 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 403 [2024-11-09 05:15:33,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:15:33,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:15:33,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:15:33,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:15:33,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:15:33,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:15:33,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:15:33,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:15:33,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (1/1) ... [2024-11-09 05:15:33,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:15:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:33,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:15:33,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:15:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:15:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:15:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:15:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:15:33,455 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:15:33,457 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:15:34,029 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-09 05:15:34,029 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:15:34,048 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:15:34,049 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:15:34,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:34 BoogieIcfgContainer [2024-11-09 05:15:34,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:15:34,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:15:34,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:15:34,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:15:34,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:15:32" (1/3) ... [2024-11-09 05:15:34,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473bb992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:34, skipping insertion in model container [2024-11-09 05:15:34,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:32" (2/3) ... [2024-11-09 05:15:34,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473bb992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:34, skipping insertion in model container [2024-11-09 05:15:34,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:34" (3/3) ... [2024-11-09 05:15:34,067 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-09 05:15:34,093 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:15:34,094 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:15:34,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:15:34,196 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;@1e27ffe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:15:34,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:15:34,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-09 05:15:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:15:34,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:34,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:15:34,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:34,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-09 05:15:34,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:34,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128101886] [2024-11-09 05:15:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:34,245 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 [2024-11-09 05:15:34,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:34,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:15:34,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:34,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:15:34,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:15:34,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:34,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:15:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128101886] [2024-11-09 05:15:34,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128101886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:34,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:15:34,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:15:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621725282] [2024-11-09 05:15:34,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:34,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:15:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:15:34,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:15:34,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:15:34,773 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-09 05:15:34,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:34,853 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2024-11-09 05:15:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:15:34,856 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 [2024-11-09 05:15:34,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:34,865 INFO L225 Difference]: With dead ends: 19 [2024-11-09 05:15:34,865 INFO L226 Difference]: Without dead ends: 10 [2024-11-09 05:15:34,868 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 [2024-11-09 05:15:34,873 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:34,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:15:34,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-09 05:15:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-09 05:15:34,908 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) [2024-11-09 05:15:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-09 05:15:34,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-09 05:15:34,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:34,911 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-09 05:15:34,912 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) [2024-11-09 05:15:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-09 05:15:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:15:34,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:34,913 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:34,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:35,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:35,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:35,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:35,115 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-09 05:15:35,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:35,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766867502] [2024-11-09 05:15:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:35,116 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 [2024-11-09 05:15:35,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:35,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:15:35,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c1bd4e-f197-4266-aa2a-a58abe9a47f2/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:35,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:15:35,332 INFO L278 TraceCheckSpWp]: Computing forward predicates...