./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 158825441bba3feb949ddeebc9960176b40b93a77b9957f5b3b8b9ba5682b39e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:16,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:17,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:24:17,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:17,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:17,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:17,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:17,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:17,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:17,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:17,254 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:17,255 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:17,255 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:17,257 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:17,258 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:17,259 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:17,259 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:17,260 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:17,260 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:17,261 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:17,261 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:17,262 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:17,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:17,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:17,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:17,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:17,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:17,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:17,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:17,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:17,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:17,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:17,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:17,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:17,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:17,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:17,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:17,280 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:17,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:17,280 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:17,281 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:17,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:17,282 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_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 158825441bba3feb949ddeebc9960176b40b93a77b9957f5b3b8b9ba5682b39e [2023-11-19 05:24:17,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:17,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:17,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:17,737 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:17,739 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:17,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c [2023-11-19 05:24:21,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:21,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:21,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c [2023-11-19 05:24:21,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data/e97b0c5b5/aeb8c619ccbf4570b44ddcf78da4abc4/FLAG4b7228c0a [2023-11-19 05:24:21,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data/e97b0c5b5/aeb8c619ccbf4570b44ddcf78da4abc4 [2023-11-19 05:24:22,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:22,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:22,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:22,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:22,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:22,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:21" (1/1) ... [2023-11-19 05:24:22,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b31ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22, skipping insertion in model container [2023-11-19 05:24:22,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:21" (1/1) ... [2023-11-19 05:24:22,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:22,383 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c[1259,1272] [2023-11-19 05:24:22,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:22,968 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:22,982 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c[1259,1272] [2023-11-19 05:24:23,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:23,141 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:23,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23 WrapperNode [2023-11-19 05:24:23,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:23,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:23,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:23,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:23,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,603 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2942 [2023-11-19 05:24:23,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:23,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:23,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:23,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:23,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:23,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:24,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:24,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:24,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:24,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:24,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:24,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (1/1) ... [2023-11-19 05:24:24,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:24,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:24,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:24,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:24,724 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:24,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:27,947 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:34,324 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:34,324 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:34,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:34 BoogieIcfgContainer [2023-11-19 05:24:34,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:34,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:34,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:34,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:34,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:21" (1/3) ... [2023-11-19 05:24:34,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caf17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:34, skipping insertion in model container [2023-11-19 05:24:34,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:23" (2/3) ... [2023-11-19 05:24:34,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caf17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:34, skipping insertion in model container [2023-11-19 05:24:34,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:34" (3/3) ... [2023-11-19 05:24:34,341 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p08.c [2023-11-19 05:24:34,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:34,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:34,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:34,455 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fffb8c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:34,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:34,461 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) [2023-11-19 05:24:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:24:34,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:34,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:24:34,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:34,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:34,483 INFO L85 PathProgramCache]: Analyzing trace with hash 89814686, now seen corresponding path program 1 times [2023-11-19 05:24:34,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:34,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496969575] [2023-11-19 05:24:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:24:39,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:24:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:24:42,249 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:24:42,253 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:24:42,255 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:24:42,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:24:42,263 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:24:42,270 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:24:42,359 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:24:42,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:24:42 BoogieIcfgContainer [2023-11-19 05:24:42,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:24:42,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:24:42,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:24:42,402 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:24:42,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:34" (3/4) ... [2023-11-19 05:24:42,408 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:24:42,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:24:42,411 INFO L158 Benchmark]: Toolchain (without parser) took 20404.12ms. Allocated memory was 182.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 146.6MB in the beginning and 734.8MB in the end (delta: -588.2MB). Peak memory consumption was 632.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:42,412 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:42,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1131.38ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 96.0MB in the end (delta: 50.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-19 05:24:42,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 459.98ms. Allocated memory is still 182.5MB. Free memory was 96.0MB in the beginning and 95.2MB in the end (delta: 822.2kB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-19 05:24:42,417 INFO L158 Benchmark]: Boogie Preprocessor took 560.39ms. Allocated memory is still 182.5MB. Free memory was 95.2MB in the beginning and 103.6MB in the end (delta: -8.4MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2023-11-19 05:24:42,422 INFO L158 Benchmark]: RCFGBuilder took 10164.32ms. Allocated memory was 182.5MB in the beginning and 700.4MB in the end (delta: 518.0MB). Free memory was 103.1MB in the beginning and 489.4MB in the end (delta: -386.4MB). Peak memory consumption was 292.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:42,425 INFO L158 Benchmark]: TraceAbstraction took 8065.46ms. Allocated memory was 700.4MB in the beginning and 1.4GB in the end (delta: 700.4MB). Free memory was 489.4MB in the beginning and 734.8MB in the end (delta: -245.4MB). Peak memory consumption was 455.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:42,425 INFO L158 Benchmark]: Witness Printer took 8.65ms. Allocated memory is still 1.4GB. Free memory is still 734.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:42,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1131.38ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 96.0MB in the end (delta: 50.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 459.98ms. Allocated memory is still 182.5MB. Free memory was 96.0MB in the beginning and 95.2MB in the end (delta: 822.2kB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 560.39ms. Allocated memory is still 182.5MB. Free memory was 95.2MB in the beginning and 103.6MB in the end (delta: -8.4MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * RCFGBuilder took 10164.32ms. Allocated memory was 182.5MB in the beginning and 700.4MB in the end (delta: 518.0MB). Free memory was 103.1MB in the beginning and 489.4MB in the end (delta: -386.4MB). Peak memory consumption was 292.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8065.46ms. Allocated memory was 700.4MB in the beginning and 1.4GB in the end (delta: 700.4MB). Free memory was 489.4MB in the beginning and 734.8MB in the end (delta: -245.4MB). Peak memory consumption was 455.1MB. Max. memory is 16.1GB. * Witness Printer took 8.65ms. Allocated memory is still 1.4GB. Free memory is still 734.8MB. 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 177, 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_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 3); [L36] const SORT_10 msb_SORT_10 = (SORT_10)1 << (3 - 1); [L38] const SORT_24 mask_SORT_24 = (SORT_24)-1 >> (sizeof(SORT_24) * 8 - 2); [L39] const SORT_24 msb_SORT_24 = (SORT_24)1 << (2 - 1); [L41] const SORT_156 mask_SORT_156 = (SORT_156)-1 >> (sizeof(SORT_156) * 8 - 4); [L42] const SORT_156 msb_SORT_156 = (SORT_156)1 << (4 - 1); [L44] const SORT_204 mask_SORT_204 = (SORT_204)-1 >> (sizeof(SORT_204) * 8 - 32); [L45] const SORT_204 msb_SORT_204 = (SORT_204)1 << (32 - 1); [L47] const SORT_5 var_7 = 0; [L48] const SORT_10 var_12 = 3; [L49] const SORT_10 var_15 = 4; [L50] const SORT_10 var_18 = 0; [L51] const SORT_1 var_22 = 1; [L52] const SORT_24 var_26 = 0; [L53] const SORT_24 var_29 = 3; [L54] const SORT_3 var_34 = 0; [L55] const SORT_1 var_45 = 0; [L56] const SORT_10 var_118 = 2; [L57] const SORT_10 var_122 = 1; [L58] const SORT_10 var_128 = 5; [L59] const SORT_10 var_172 = 7; [L60] const SORT_10 var_177 = 6; [L61] const SORT_204 var_206 = 0; [L62] const SORT_3 var_221 = 2; [L63] const SORT_3 var_243 = 31; [L65] SORT_1 input_2; [L66] SORT_3 input_4; [L67] SORT_5 input_6; [L68] SORT_3 input_232; [L69] SORT_3 input_233; [L70] SORT_3 input_234; [L71] SORT_3 input_242; [L72] SORT_3 input_252; [L73] SORT_3 input_253; [L74] SORT_3 input_254; [L75] SORT_3 input_257; [L76] SORT_3 input_276; [L77] SORT_3 input_277; [L78] SORT_3 input_278; [L79] SORT_3 input_281; [L80] SORT_3 input_283; [L81] SORT_24 input_297; [L82] SORT_24 input_298; [L83] SORT_24 input_299; [L85] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 [L85] SORT_5 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L86] SORT_10 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L87] SORT_3 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L88] SORT_3 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L89] SORT_3 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L91] SORT_3 state_104 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L92] SORT_3 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L93] SORT_3 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L94] SORT_3 state_110 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L95] SORT_3 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L96] SORT_3 state_114 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L97] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L99] SORT_5 init_9_arg_1 = var_7; [L100] state_8 = init_9_arg_1 [L101] SORT_10 init_20_arg_1 = var_18; [L102] state_19 = init_20_arg_1 [L103] SORT_3 init_36_arg_1 = var_34; [L104] state_35 = init_36_arg_1 [L105] SORT_3 init_39_arg_1 = var_34; [L106] state_38 = init_39_arg_1 [L107] SORT_3 init_43_arg_1 = var_34; [L108] state_42 = init_43_arg_1 [L109] SORT_1 init_103_arg_1 = var_45; [L110] state_102 = init_103_arg_1 [L111] SORT_3 init_105_arg_1 = var_34; [L112] state_104 = init_105_arg_1 [L113] SORT_3 init_107_arg_1 = var_34; [L114] state_106 = init_107_arg_1 [L115] SORT_3 init_109_arg_1 = var_34; [L116] state_108 = init_109_arg_1 [L117] SORT_3 init_111_arg_1 = var_34; [L118] state_110 = init_111_arg_1 [L119] SORT_3 init_113_arg_1 = var_34; [L120] state_112 = init_113_arg_1 [L121] SORT_3 init_115_arg_1 = var_34; [L122] state_114 = init_115_arg_1 [L123] SORT_3 init_117_arg_1 = var_34; [L124] state_116 = init_117_arg_1 VAL [init_103_arg_1=0, init_105_arg_1=0, init_107_arg_1=0, init_109_arg_1=0, init_111_arg_1=0, init_113_arg_1=0, init_115_arg_1=0, init_117_arg_1=0, init_20_arg_1=0, init_36_arg_1=0, init_39_arg_1=0, init_43_arg_1=0, init_9_arg_1=0, mask_SORT_10=7, mask_SORT_156=15, mask_SORT_1=1, mask_SORT_204=4294967295, mask_SORT_24=3, mask_SORT_3=31, mask_SORT_5=4095, msb_SORT_10=4, msb_SORT_156=8, msb_SORT_1=1, msb_SORT_204=2147483648, msb_SORT_24=2, msb_SORT_3=16, msb_SORT_5=2048, state_102=0, state_104=0, state_106=0, state_108=0, state_110=0, state_112=0, state_114=0, state_116=0, state_19=0, state_35=0, state_38=0, state_42=0, state_8=0, var_118=2, var_122=1, var_128=5, var_12=3, var_15=4, var_172=7, var_177=6, var_18=0, var_206=0, var_221=2, var_22=1, var_243=31, var_26=0, var_29=3, var_34=0, var_45=0, var_7=0] [L127] input_2 = __VERIFIER_nondet_uchar() [L128] input_4 = __VERIFIER_nondet_uchar() [L129] input_6 = __VERIFIER_nondet_ushort() [L130] input_232 = __VERIFIER_nondet_uchar() [L131] input_233 = __VERIFIER_nondet_uchar() [L132] input_234 = __VERIFIER_nondet_uchar() [L133] input_242 = __VERIFIER_nondet_uchar() [L134] input_252 = __VERIFIER_nondet_uchar() [L135] input_253 = __VERIFIER_nondet_uchar() [L136] input_254 = __VERIFIER_nondet_uchar() [L137] input_257 = __VERIFIER_nondet_uchar() [L138] input_276 = __VERIFIER_nondet_uchar() [L139] input_277 = __VERIFIER_nondet_uchar() [L140] input_278 = __VERIFIER_nondet_uchar() [L141] input_281 = __VERIFIER_nondet_uchar() [L142] input_283 = __VERIFIER_nondet_uchar() [L143] input_297 = __VERIFIER_nondet_uchar() [L144] input_298 = __VERIFIER_nondet_uchar() [L145] input_299 = __VERIFIER_nondet_uchar() [L148] SORT_5 var_11_arg_0 = state_8; [L149] SORT_10 var_11 = var_11_arg_0 >> 9; [L150] EXPR var_11 & mask_SORT_10 [L150] var_11 = var_11 & mask_SORT_10 [L151] SORT_10 var_13_arg_0 = var_11; [L152] SORT_10 var_13_arg_1 = var_12; [L153] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L154] SORT_5 var_14_arg_0 = state_8; [L155] SORT_10 var_14 = var_14_arg_0 >> 0; [L156] EXPR var_14 & mask_SORT_10 [L156] var_14 = var_14 & mask_SORT_10 [L157] SORT_10 var_16_arg_0 = var_14; [L158] SORT_10 var_16_arg_1 = var_15; [L159] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L160] SORT_1 var_17_arg_0 = var_13; [L161] SORT_1 var_17_arg_1 = var_16; [L162] EXPR var_17_arg_0 & var_17_arg_1 [L162] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L163] SORT_10 var_21_arg_0 = state_19; [L164] SORT_1 var_21 = var_21_arg_0 >> 2; [L165] EXPR var_21 & mask_SORT_1 [L165] var_21 = var_21 & mask_SORT_1 [L166] SORT_1 var_23_arg_0 = var_21; [L167] SORT_1 var_23_arg_1 = var_22; [L168] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L169] SORT_10 var_25_arg_0 = state_19; [L170] SORT_24 var_25 = var_25_arg_0 >> 0; [L171] EXPR var_25 & mask_SORT_24 [L171] var_25 = var_25 & mask_SORT_24 [L172] SORT_24 var_27_arg_0 = var_25; [L173] SORT_24 var_27_arg_1 = var_26; [L174] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L175] SORT_1 var_28_arg_0 = var_23; [L176] SORT_1 var_28_arg_1 = var_27; [L177] EXPR var_28_arg_0 | var_28_arg_1 [L177] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L178] SORT_24 var_30_arg_0 = var_25; [L179] SORT_24 var_30_arg_1 = var_29; [L180] SORT_1 var_30 = var_30_arg_0 == var_30_arg_1; [L181] SORT_1 var_31_arg_0 = var_28; [L182] SORT_1 var_31_arg_1 = var_30; [L183] EXPR var_31_arg_0 | var_31_arg_1 [L183] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L184] SORT_1 var_32_arg_0 = var_17; [L185] SORT_1 var_32_arg_1 = var_31; [L186] EXPR var_32_arg_0 & var_32_arg_1 [L186] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L187] SORT_1 var_33_arg_0 = var_32; [L188] SORT_1 var_33 = ~var_33_arg_0; [L189] SORT_3 var_37_arg_0 = state_35; [L190] SORT_1 var_37 = var_37_arg_0 >> 4; [L191] EXPR var_37 & mask_SORT_1 [L191] var_37 = var_37 & mask_SORT_1 [L192] SORT_3 var_40_arg_0 = state_38; [L193] SORT_1 var_40 = var_40_arg_0 >> 4; [L194] EXPR var_40 & mask_SORT_1 [L194] var_40 = var_40 & mask_SORT_1 [L195] SORT_1 var_41_arg_0 = var_37; [L196] SORT_1 var_41_arg_1 = var_40; [L197] SORT_1 var_41 = var_41_arg_0 != var_41_arg_1; [L198] SORT_3 var_44_arg_0 = state_42; [L199] SORT_1 var_44 = var_44_arg_0 >> 4; [L200] EXPR var_44 & mask_SORT_1 [L200] var_44 = var_44 & mask_SORT_1 [L201] SORT_1 var_46_arg_0 = var_44; [L202] SORT_1 var_46_arg_1 = var_45; [L203] SORT_1 var_46 = var_46_arg_0 == var_46_arg_1; [L204] SORT_1 var_47_arg_0 = var_41; [L205] SORT_1 var_47_arg_1 = var_46; [L206] EXPR var_47_arg_0 | var_47_arg_1 [L206] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L207] SORT_1 var_48_arg_0 = var_44; [L208] SORT_1 var_48_arg_1 = var_45; [L209] SORT_1 var_48 = var_48_arg_0 != var_48_arg_1; [L210] SORT_1 var_49_arg_0 = var_37; [L211] SORT_1 var_49_arg_1 = var_40; [L212] SORT_1 var_49 = var_49_arg_0 == var_49_arg_1; [L213] SORT_1 var_50_arg_0 = var_48; [L214] SORT_1 var_50_arg_1 = var_49; [L215] EXPR var_50_arg_0 | var_50_arg_1 [L215] SORT_1 var_50 = var_50_arg_0 | var_50_arg_1; [L216] SORT_1 var_51_arg_0 = var_47; [L217] SORT_1 var_51_arg_1 = var_50; [L218] EXPR var_51_arg_0 & var_51_arg_1 [L218] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L219] SORT_3 var_52_arg_0 = state_35; [L220] SORT_1 var_52 = var_52_arg_0 >> 3; [L221] EXPR var_52 & mask_SORT_1 [L221] var_52 = var_52 & mask_SORT_1 [L222] SORT_3 var_53_arg_0 = state_38; [L223] SORT_1 var_53 = var_53_arg_0 >> 3; [L224] EXPR var_53 & mask_SORT_1 [L224] var_53 = var_53 & mask_SORT_1 [L225] SORT_1 var_54_arg_0 = var_52; [L226] SORT_1 var_54_arg_1 = var_53; [L227] SORT_1 var_54 = var_54_arg_0 != var_54_arg_1; [L228] SORT_3 var_55_arg_0 = state_42; [L229] SORT_1 var_55 = var_55_arg_0 >> 3; [L230] EXPR var_55 & mask_SORT_1 [L230] var_55 = var_55 & mask_SORT_1 [L231] SORT_1 var_56_arg_0 = var_55; [L232] SORT_1 var_56_arg_1 = var_45; [L233] SORT_1 var_56 = var_56_arg_0 == var_56_arg_1; [L234] SORT_1 var_57_arg_0 = var_54; [L235] SORT_1 var_57_arg_1 = var_56; [L236] EXPR var_57_arg_0 | var_57_arg_1 [L236] SORT_1 var_57 = var_57_arg_0 | var_57_arg_1; [L237] SORT_1 var_58_arg_0 = var_51; [L238] SORT_1 var_58_arg_1 = var_57; [L239] EXPR var_58_arg_0 & var_58_arg_1 [L239] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L240] SORT_1 var_59_arg_0 = var_55; [L241] SORT_1 var_59_arg_1 = var_45; [L242] SORT_1 var_59 = var_59_arg_0 != var_59_arg_1; [L243] SORT_1 var_60_arg_0 = var_52; [L244] SORT_1 var_60_arg_1 = var_53; [L245] SORT_1 var_60 = var_60_arg_0 == var_60_arg_1; [L246] SORT_1 var_61_arg_0 = var_59; [L247] SORT_1 var_61_arg_1 = var_60; [L248] EXPR var_61_arg_0 | var_61_arg_1 [L248] SORT_1 var_61 = var_61_arg_0 | var_61_arg_1; [L249] SORT_1 var_62_arg_0 = var_58; [L250] SORT_1 var_62_arg_1 = var_61; [L251] EXPR var_62_arg_0 & var_62_arg_1 [L251] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L252] SORT_3 var_63_arg_0 = state_35; [L253] SORT_1 var_63 = var_63_arg_0 >> 2; [L254] EXPR var_63 & mask_SORT_1 [L254] var_63 = var_63 & mask_SORT_1 [L255] SORT_3 var_64_arg_0 = state_38; [L256] SORT_1 var_64 = var_64_arg_0 >> 2; [L257] EXPR var_64 & mask_SORT_1 [L257] var_64 = var_64 & mask_SORT_1 [L258] SORT_1 var_65_arg_0 = var_63; [L259] SORT_1 var_65_arg_1 = var_64; [L260] SORT_1 var_65 = var_65_arg_0 != var_65_arg_1; [L261] SORT_3 var_66_arg_0 = state_42; [L262] SORT_1 var_66 = var_66_arg_0 >> 2; [L263] EXPR var_66 & mask_SORT_1 [L263] var_66 = var_66 & mask_SORT_1 [L264] SORT_1 var_67_arg_0 = var_66; [L265] SORT_1 var_67_arg_1 = var_45; [L266] SORT_1 var_67 = var_67_arg_0 == var_67_arg_1; [L267] SORT_1 var_68_arg_0 = var_65; [L268] SORT_1 var_68_arg_1 = var_67; [L269] EXPR var_68_arg_0 | var_68_arg_1 [L269] SORT_1 var_68 = var_68_arg_0 | var_68_arg_1; [L270] SORT_1 var_69_arg_0 = var_62; [L271] SORT_1 var_69_arg_1 = var_68; [L272] EXPR var_69_arg_0 & var_69_arg_1 [L272] SORT_1 var_69 = var_69_arg_0 & var_69_arg_1; [L273] SORT_1 var_70_arg_0 = var_66; [L274] SORT_1 var_70_arg_1 = var_45; [L275] SORT_1 var_70 = var_70_arg_0 != var_70_arg_1; [L276] SORT_1 var_71_arg_0 = var_63; [L277] SORT_1 var_71_arg_1 = var_64; [L278] SORT_1 var_71 = var_71_arg_0 == var_71_arg_1; [L279] SORT_1 var_72_arg_0 = var_70; [L280] SORT_1 var_72_arg_1 = var_71; [L281] EXPR var_72_arg_0 | var_72_arg_1 [L281] SORT_1 var_72 = var_72_arg_0 | var_72_arg_1; [L282] SORT_1 var_73_arg_0 = var_69; [L283] SORT_1 var_73_arg_1 = var_72; [L284] EXPR var_73_arg_0 & var_73_arg_1 [L284] SORT_1 var_73 = var_73_arg_0 & var_73_arg_1; [L285] SORT_3 var_74_arg_0 = state_35; [L286] SORT_1 var_74 = var_74_arg_0 >> 1; [L287] EXPR var_74 & mask_SORT_1 [L287] var_74 = var_74 & mask_SORT_1 [L288] SORT_3 var_75_arg_0 = state_38; [L289] SORT_1 var_75 = var_75_arg_0 >> 1; [L290] EXPR var_75 & mask_SORT_1 [L290] var_75 = var_75 & mask_SORT_1 [L291] SORT_1 var_76_arg_0 = var_74; [L292] SORT_1 var_76_arg_1 = var_75; [L293] SORT_1 var_76 = var_76_arg_0 != var_76_arg_1; [L294] SORT_3 var_77_arg_0 = state_42; [L295] SORT_1 var_77 = var_77_arg_0 >> 1; [L296] EXPR var_77 & mask_SORT_1 [L296] var_77 = var_77 & mask_SORT_1 [L297] SORT_1 var_78_arg_0 = var_77; [L298] SORT_1 var_78_arg_1 = var_45; [L299] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L300] SORT_1 var_79_arg_0 = var_76; [L301] SORT_1 var_79_arg_1 = var_78; [L302] EXPR var_79_arg_0 | var_79_arg_1 [L302] SORT_1 var_79 = var_79_arg_0 | var_79_arg_1; [L303] SORT_1 var_80_arg_0 = var_73; [L304] SORT_1 var_80_arg_1 = var_79; [L305] EXPR var_80_arg_0 & var_80_arg_1 [L305] SORT_1 var_80 = var_80_arg_0 & var_80_arg_1; [L306] SORT_1 var_81_arg_0 = var_77; [L307] SORT_1 var_81_arg_1 = var_45; [L308] SORT_1 var_81 = var_81_arg_0 != var_81_arg_1; [L309] SORT_1 var_82_arg_0 = var_74; [L310] SORT_1 var_82_arg_1 = var_75; [L311] SORT_1 var_82 = var_82_arg_0 == var_82_arg_1; [L312] SORT_1 var_83_arg_0 = var_81; [L313] SORT_1 var_83_arg_1 = var_82; [L314] EXPR var_83_arg_0 | var_83_arg_1 [L314] SORT_1 var_83 = var_83_arg_0 | var_83_arg_1; [L315] SORT_1 var_84_arg_0 = var_80; [L316] SORT_1 var_84_arg_1 = var_83; [L317] EXPR var_84_arg_0 & var_84_arg_1 [L317] SORT_1 var_84 = var_84_arg_0 & var_84_arg_1; [L318] SORT_3 var_85_arg_0 = state_35; [L319] SORT_1 var_85 = var_85_arg_0 >> 0; [L320] EXPR var_85 & mask_SORT_1 [L320] var_85 = var_85 & mask_SORT_1 [L321] SORT_3 var_86_arg_0 = state_38; [L322] SORT_1 var_86 = var_86_arg_0 >> 0; [L323] EXPR var_86 & mask_SORT_1 [L323] var_86 = var_86 & mask_SORT_1 [L324] SORT_1 var_87_arg_0 = var_85; [L325] SORT_1 var_87_arg_1 = var_86; [L326] SORT_1 var_87 = var_87_arg_0 != var_87_arg_1; [L327] SORT_3 var_88_arg_0 = state_42; [L328] SORT_1 var_88 = var_88_arg_0 >> 0; [L329] EXPR var_88 & mask_SORT_1 [L329] var_88 = var_88 & mask_SORT_1 [L330] SORT_1 var_89_arg_0 = var_88; [L331] SORT_1 var_89_arg_1 = var_45; [L332] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L333] SORT_1 var_90_arg_0 = var_87; [L334] SORT_1 var_90_arg_1 = var_89; [L335] EXPR var_90_arg_0 | var_90_arg_1 [L335] SORT_1 var_90 = var_90_arg_0 | var_90_arg_1; [L336] SORT_1 var_91_arg_0 = var_84; [L337] SORT_1 var_91_arg_1 = var_90; [L338] EXPR var_91_arg_0 & var_91_arg_1 [L338] SORT_1 var_91 = var_91_arg_0 & var_91_arg_1; [L339] SORT_1 var_92_arg_0 = var_88; [L340] SORT_1 var_92_arg_1 = var_45; [L341] SORT_1 var_92 = var_92_arg_0 != var_92_arg_1; [L342] SORT_1 var_93_arg_0 = var_85; [L343] SORT_1 var_93_arg_1 = var_86; [L344] SORT_1 var_93 = var_93_arg_0 == var_93_arg_1; [L345] SORT_1 var_94_arg_0 = var_92; [L346] SORT_1 var_94_arg_1 = var_93; [L347] EXPR var_94_arg_0 | var_94_arg_1 [L347] SORT_1 var_94 = var_94_arg_0 | var_94_arg_1; [L348] SORT_1 var_95_arg_0 = var_91; [L349] SORT_1 var_95_arg_1 = var_94; [L350] EXPR var_95_arg_0 & var_95_arg_1 [L350] SORT_1 var_95 = var_95_arg_0 & var_95_arg_1; [L351] SORT_1 var_96_arg_0 = var_33; [L352] SORT_1 var_96_arg_1 = var_95; [L353] EXPR var_96_arg_0 | var_96_arg_1 [L353] SORT_1 var_96 = var_96_arg_0 | var_96_arg_1; [L354] SORT_1 var_99_arg_0 = var_96; [L355] SORT_1 var_99 = ~var_99_arg_0; [L356] SORT_1 var_100_arg_0 = var_22; [L357] SORT_1 var_100_arg_1 = var_99; [L358] EXPR var_100_arg_0 & var_100_arg_1 [L358] SORT_1 var_100 = var_100_arg_0 & var_100_arg_1; [L359] EXPR var_100 & mask_SORT_1 [L359] var_100 = var_100 & mask_SORT_1 [L360] SORT_1 bad_101_arg_0 = var_100; [L361] CALL __VERIFIER_assert(!(bad_101_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, 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, 4.8s 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 [2023-11-19 05:24:42,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 158825441bba3feb949ddeebc9960176b40b93a77b9957f5b3b8b9ba5682b39e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:45,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:45,882 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-19 05:24:45,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:45,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:45,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:45,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:45,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:45,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:45,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:45,961 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:45,962 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:45,962 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:45,964 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:45,965 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:45,965 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:45,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:45,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:45,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:45,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:45,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:45,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:45,970 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:24:45,971 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:24:45,971 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:24:45,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:45,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:45,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:45,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:24:45,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:45,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:45,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:45,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:45,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:45,977 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:24:45,978 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:45,978 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:45,978 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:45,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:45,980 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_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 158825441bba3feb949ddeebc9960176b40b93a77b9957f5b3b8b9ba5682b39e [2023-11-19 05:24:46,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:46,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:46,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:46,533 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:46,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:46,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c [2023-11-19 05:24:50,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:50,668 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:50,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c [2023-11-19 05:24:50,700 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data/07a45762e/bc470751366549d6a306a5bb70f39a88/FLAG48867fbbd [2023-11-19 05:24:50,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/data/07a45762e/bc470751366549d6a306a5bb70f39a88 [2023-11-19 05:24:50,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:50,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:50,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:50,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:50,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:50,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:50" (1/1) ... [2023-11-19 05:24:50,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b34b547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:50, skipping insertion in model container [2023-11-19 05:24:50,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:50" (1/1) ... [2023-11-19 05:24:50,817 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:51,116 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c[1259,1272] [2023-11-19 05:24:51,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:51,659 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:51,674 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p08.c[1259,1272] [2023-11-19 05:24:51,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:51,844 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:51,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51 WrapperNode [2023-11-19 05:24:51,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:51,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:51,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:51,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:51,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:51,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,014 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1258 [2023-11-19 05:24:52,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:52,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:52,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:52,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:52,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:52,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:52,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:52,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:52,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (1/1) ... [2023-11-19 05:24:52,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:52,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:52,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:52,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:24:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:52,716 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:52,719 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:54,618 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:54,628 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:54,628 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:54,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:54 BoogieIcfgContainer [2023-11-19 05:24:54,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:54,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:54,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:54,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:54,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:50" (1/3) ... [2023-11-19 05:24:54,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e610b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:54, skipping insertion in model container [2023-11-19 05:24:54,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:51" (2/3) ... [2023-11-19 05:24:54,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e610b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:54, skipping insertion in model container [2023-11-19 05:24:54,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:54" (3/3) ... [2023-11-19 05:24:54,648 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p08.c [2023-11-19 05:24:54,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:54,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:54,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:54,753 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@408783da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:54,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:54,759 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) [2023-11-19 05:24:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 05:24:54,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:54,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 05:24:54,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:54,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-19 05:24:54,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:54,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757314238] [2023-11-19 05:24:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:54,801 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 [2023-11-19 05:24:54,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:54,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:24:54,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:24:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:55,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 05:24:55,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:56,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:56,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:56,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757314238] [2023-11-19 05:24:56,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757314238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:56,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:56,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:24:56,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768606496] [2023-11-19 05:24:56,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:24:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:56,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:24:56,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:24:56,109 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) [2023-11-19 05:24:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:56,425 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-19 05:24:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:24:56,428 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 [2023-11-19 05:24:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:56,437 INFO L225 Difference]: With dead ends: 19 [2023-11-19 05:24:56,437 INFO L226 Difference]: Without dead ends: 10 [2023-11-19 05:24:56,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:24:56,445 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 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, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:56,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:24:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-19 05:24:56,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-19 05:24:56,487 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) [2023-11-19 05:24:56,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-19 05:24:56,490 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-19 05:24:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:56,491 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-19 05:24:56,492 INFO L496 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) [2023-11-19 05:24:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-19 05:24:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:24:56,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:56,493 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:56,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:56,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:24:56,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:56,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:56,697 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-19 05:24:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:56,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243651392] [2023-11-19 05:24:56,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:56,701 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 [2023-11-19 05:24:56,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:56,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:24:56,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f749d4b-79cc-4fa8-a9fd-3129962ed091/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:25:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:00,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 155 conjunts are in the unsatisfiable core [2023-11-19 05:25:00,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:25:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:25:02,661 INFO L327 TraceCheckSpWp]: Computing backward predicates...