./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire --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 9c5bb475ab11cbd56a79545cadb0461b70dfc72704bda231e812439b6cc3e249 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:44,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:44,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:34:44,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:44,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:44,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:44,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:44,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:44,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:44,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:44,400 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:44,401 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:44,402 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:44,403 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:44,404 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:44,404 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:44,405 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:44,405 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:44,406 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:44,406 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:44,407 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:44,407 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:44,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:44,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:44,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:44,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:44,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:44,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:44,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:44,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:44,413 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:44,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:44,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:44,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:44,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:44,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:44,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:44,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:44,416 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:44,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:44,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:44,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:44,417 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:44,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:44,418 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5bb475ab11cbd56a79545cadb0461b70dfc72704bda231e812439b6cc3e249 [2023-11-23 20:34:44,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:44,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:44,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:44,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:44,774 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:44,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c [2023-11-23 20:34:47,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:48,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:48,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c [2023-11-23 20:34:48,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data/0d4a91f56/f46897a7e8f94c1ca59804efdaa3b503/FLAG3d6f5c985 [2023-11-23 20:34:48,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data/0d4a91f56/f46897a7e8f94c1ca59804efdaa3b503 [2023-11-23 20:34:48,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:48,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:48,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:48,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:48,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:48,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:48,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa0cb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48, skipping insertion in model container [2023-11-23 20:34:48,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:48,442 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:48,653 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c[1259,1272] [2023-11-23 20:34:49,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:49,078 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:49,087 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c[1259,1272] [2023-11-23 20:34:49,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:49,379 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:49,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49 WrapperNode [2023-11-23 20:34:49,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:49,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:49,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:49,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:49,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:49,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:49,830 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3042 [2023-11-23 20:34:49,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:49,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:49,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:49,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:49,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:49,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:49,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:49,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:50,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:50,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:50,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:50,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:50,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:50,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:50,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:50,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:50,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (1/1) ... [2023-11-23 20:34:50,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:50,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:50,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:50,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:50,675 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:50,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:53,344 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:57,569 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:57,570 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:57,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:57 BoogieIcfgContainer [2023-11-23 20:34:57,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:57,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:57,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:57,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:57,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:48" (1/3) ... [2023-11-23 20:34:57,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39295e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:57, skipping insertion in model container [2023-11-23 20:34:57,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:49" (2/3) ... [2023-11-23 20:34:57,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39295e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:57, skipping insertion in model container [2023-11-23 20:34:57,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:57" (3/3) ... [2023-11-23 20:34:57,582 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p16.c [2023-11-23 20:34:57,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:57,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:57,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:57,661 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;@76275ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:57,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:57,665 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) [2023-11-23 20:34:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:34:57,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:57,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 20:34:57,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:57,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:57,678 INFO L85 PathProgramCache]: Analyzing trace with hash 87148299, now seen corresponding path program 1 times [2023-11-23 20:34:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:57,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223762566] [2023-11-23 20:34:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:57,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:03,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:35:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:08,544 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:35:08,546 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:35:08,548 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:35:08,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:08,555 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:35:08,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:08,637 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 20:35:08,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:08 BoogieIcfgContainer [2023-11-23 20:35:08,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:08,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:08,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:08,659 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:08,660 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:57" (3/4) ... [2023-11-23 20:35:08,662 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:35:08,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:08,665 INFO L158 Benchmark]: Toolchain (without parser) took 20307.89ms. Allocated memory was 161.5MB in the beginning and 1.1GB in the end (delta: 983.6MB). Free memory was 113.8MB in the beginning and 907.3MB in the end (delta: -793.5MB). Peak memory consumption was 192.0MB. Max. memory is 16.1GB. [2023-11-23 20:35:08,670 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 96.2MB in the end (delta: 79.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:08,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1021.48ms. Allocated memory is still 161.5MB. Free memory was 113.4MB in the beginning and 112.5MB in the end (delta: 842.2kB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2023-11-23 20:35:08,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 449.65ms. Allocated memory is still 161.5MB. Free memory was 112.5MB in the beginning and 83.4MB in the end (delta: 29.1MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2023-11-23 20:35:08,672 INFO L158 Benchmark]: Boogie Preprocessor took 371.97ms. Allocated memory is still 161.5MB. Free memory was 83.4MB in the beginning and 72.2MB in the end (delta: 11.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-11-23 20:35:08,673 INFO L158 Benchmark]: RCFGBuilder took 7367.52ms. Allocated memory was 161.5MB in the beginning and 572.5MB in the end (delta: 411.0MB). Free memory was 72.2MB in the beginning and 272.8MB in the end (delta: -200.6MB). Peak memory consumption was 335.7MB. Max. memory is 16.1GB. [2023-11-23 20:35:08,674 INFO L158 Benchmark]: TraceAbstraction took 11083.28ms. Allocated memory was 572.5MB in the beginning and 1.1GB in the end (delta: 572.5MB). Free memory was 272.8MB in the beginning and 907.3MB in the end (delta: -634.5MB). Peak memory consumption was 512.6MB. Max. memory is 16.1GB. [2023-11-23 20:35:08,675 INFO L158 Benchmark]: Witness Printer took 5.25ms. Allocated memory is still 1.1GB. Free memory is still 907.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:08,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 96.2MB in the end (delta: 79.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1021.48ms. Allocated memory is still 161.5MB. Free memory was 113.4MB in the beginning and 112.5MB in the end (delta: 842.2kB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 449.65ms. Allocated memory is still 161.5MB. Free memory was 112.5MB in the beginning and 83.4MB in the end (delta: 29.1MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 371.97ms. Allocated memory is still 161.5MB. Free memory was 83.4MB in the beginning and 72.2MB in the end (delta: 11.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * RCFGBuilder took 7367.52ms. Allocated memory was 161.5MB in the beginning and 572.5MB in the end (delta: 411.0MB). Free memory was 72.2MB in the beginning and 272.8MB in the end (delta: -200.6MB). Peak memory consumption was 335.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11083.28ms. Allocated memory was 572.5MB in the beginning and 1.1GB in the end (delta: 572.5MB). Free memory was 272.8MB in the beginning and 907.3MB in the end (delta: -634.5MB). Peak memory consumption was 512.6MB. Max. memory is 16.1GB. * Witness Printer took 5.25ms. Allocated memory is still 1.1GB. Free memory is still 907.3MB. 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 206, overapproximation of bitwiseAnd at line 158. 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_144 mask_SORT_144 = (SORT_144)-1 >> (sizeof(SORT_144) * 8 - 3); [L36] const SORT_144 msb_SORT_144 = (SORT_144)1 << (3 - 1); [L38] const SORT_171 mask_SORT_171 = (SORT_171)-1 >> (sizeof(SORT_171) * 8 - 2); [L39] const SORT_171 msb_SORT_171 = (SORT_171)1 << (2 - 1); [L41] const SORT_173 mask_SORT_173 = (SORT_173)-1 >> (sizeof(SORT_173) * 8 - 32); [L42] const SORT_173 msb_SORT_173 = (SORT_173)1 << (32 - 1); [L44] const SORT_279 mask_SORT_279 = (SORT_279)-1 >> (sizeof(SORT_279) * 8 - 4); [L45] const SORT_279 msb_SORT_279 = (SORT_279)1 << (4 - 1); [L47] const SORT_3 var_7 = 0; [L48] const SORT_1 var_12 = 0; [L49] const SORT_1 var_20 = 1; [L50] const SORT_5 var_129 = 0; [L51] const SORT_144 var_145 = 0; [L52] const SORT_144 var_149 = 2; [L53] const SORT_144 var_153 = 1; [L54] const SORT_144 var_158 = 4; [L55] const SORT_144 var_160 = 5; [L56] const SORT_144 var_164 = 3; [L57] const SORT_173 var_175 = 0; [L58] const SORT_3 var_182 = 31; [L59] const SORT_144 var_380 = 7; [L60] const SORT_144 var_385 = 6; [L61] const SORT_3 var_430 = 2; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_168; [L67] SORT_3 input_169; [L68] SORT_3 input_170; [L69] SORT_3 input_181; [L70] SORT_3 input_191; [L71] SORT_3 input_192; [L72] SORT_3 input_193; [L73] SORT_3 input_196; [L74] SORT_3 input_215; [L75] SORT_3 input_216; [L76] SORT_3 input_217; [L77] SORT_3 input_220; [L78] SORT_3 input_222; [L79] SORT_171 input_236; [L80] SORT_171 input_237; [L81] SORT_171 input_238; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L83] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L84] SORT_3 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L85] SORT_3 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L86] SORT_3 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L87] SORT_3 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L88] SORT_3 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L89] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 [L91] SORT_5 state_130 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L92] SORT_3 state_132 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L93] SORT_3 state_134 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L94] SORT_3 state_136 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_144 [L95] SORT_144 state_146 = __VERIFIER_nondet_uchar() & mask_SORT_144; [L97] SORT_3 init_9_arg_1 = var_7; [L98] state_8 = init_9_arg_1 [L99] SORT_3 init_11_arg_1 = var_7; [L100] state_10 = init_11_arg_1 [L101] SORT_3 init_15_arg_1 = var_7; [L102] state_14 = init_15_arg_1 [L103] SORT_3 init_17_arg_1 = var_7; [L104] state_16 = init_17_arg_1 [L105] SORT_3 init_66_arg_1 = var_7; [L106] state_65 = init_66_arg_1 [L107] SORT_3 init_88_arg_1 = var_7; [L108] state_87 = init_88_arg_1 [L109] SORT_3 init_117_arg_1 = var_7; [L110] state_116 = init_117_arg_1 [L111] SORT_1 init_128_arg_1 = var_12; [L112] state_127 = init_128_arg_1 [L113] SORT_5 init_131_arg_1 = var_129; [L114] state_130 = init_131_arg_1 [L115] SORT_3 init_133_arg_1 = var_7; [L116] state_132 = init_133_arg_1 [L117] SORT_3 init_135_arg_1 = var_7; [L118] state_134 = init_135_arg_1 [L119] SORT_3 init_137_arg_1 = var_7; [L120] state_136 = init_137_arg_1 [L121] SORT_144 init_147_arg_1 = var_145; [L122] state_146 = init_147_arg_1 VAL [init_117_arg_1=0, init_11_arg_1=0, init_128_arg_1=0, init_131_arg_1=0, init_133_arg_1=0, init_135_arg_1=0, init_137_arg_1=0, init_147_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_66_arg_1=0, init_88_arg_1=0, init_9_arg_1=0, mask_SORT_144=7, mask_SORT_171=3, mask_SORT_173=4294967295, mask_SORT_1=1, mask_SORT_279=15, mask_SORT_3=31, mask_SORT_5=4095, msb_SORT_144=4, msb_SORT_171=2, msb_SORT_173=2147483648, msb_SORT_1=1, msb_SORT_279=8, msb_SORT_3=16, msb_SORT_5=2048, state_10=0, state_116=0, state_127=0, state_130=0, state_132=0, state_134=0, state_136=0, state_146=0, state_14=0, state_16=0, state_65=0, state_87=0, state_8=0, var_129=0, var_12=0, var_145=0, var_149=2, var_153=1, var_158=4, var_160=5, var_164=3, var_175=0, var_182=31, var_20=1, var_380=7, var_385=6, var_430=2, var_7=0] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_168 = __VERIFIER_nondet_uchar() [L129] input_169 = __VERIFIER_nondet_uchar() [L130] input_170 = __VERIFIER_nondet_uchar() [L131] input_181 = __VERIFIER_nondet_uchar() [L132] input_191 = __VERIFIER_nondet_uchar() [L133] input_192 = __VERIFIER_nondet_uchar() [L134] input_193 = __VERIFIER_nondet_uchar() [L135] input_196 = __VERIFIER_nondet_uchar() [L136] input_215 = __VERIFIER_nondet_uchar() [L137] input_216 = __VERIFIER_nondet_uchar() [L138] input_217 = __VERIFIER_nondet_uchar() [L139] input_220 = __VERIFIER_nondet_uchar() [L140] input_222 = __VERIFIER_nondet_uchar() [L141] input_236 = __VERIFIER_nondet_uchar() [L142] input_237 = __VERIFIER_nondet_uchar() [L143] input_238 = __VERIFIER_nondet_uchar() [L146] SORT_1 var_18_arg_0 = var_12; [L147] SORT_3 var_18_arg_1 = state_16; [L148] SORT_3 var_18_arg_2 = state_14; [L149] SORT_3 var_18 = var_18_arg_0 ? var_18_arg_1 : var_18_arg_2; [L150] SORT_1 var_13_arg_0 = var_12; [L151] SORT_3 var_13_arg_1 = state_10; [L152] SORT_3 var_13_arg_2 = state_8; [L153] SORT_3 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L154] SORT_1 var_19_arg_0 = var_12; [L155] SORT_3 var_19_arg_1 = var_18; [L156] SORT_3 var_19_arg_2 = var_13; [L157] SORT_3 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L158] EXPR var_19 & mask_SORT_3 [L158] var_19 = var_19 & mask_SORT_3 [L159] SORT_1 var_22_arg_0 = var_20; [L160] SORT_3 var_22_arg_1 = state_16; [L161] SORT_3 var_22_arg_2 = state_14; [L162] SORT_3 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L163] SORT_1 var_21_arg_0 = var_20; [L164] SORT_3 var_21_arg_1 = state_10; [L165] SORT_3 var_21_arg_2 = state_8; [L166] SORT_3 var_21 = var_21_arg_0 ? var_21_arg_1 : var_21_arg_2; [L167] SORT_1 var_23_arg_0 = var_12; [L168] SORT_3 var_23_arg_1 = var_22; [L169] SORT_3 var_23_arg_2 = var_21; [L170] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L171] EXPR var_23 & mask_SORT_3 [L171] var_23 = var_23 & mask_SORT_3 [L172] SORT_3 var_24_arg_0 = var_19; [L173] SORT_3 var_24_arg_1 = var_23; [L174] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L175] SORT_1 var_26_arg_0 = var_12; [L176] SORT_3 var_26_arg_1 = state_16; [L177] SORT_3 var_26_arg_2 = state_14; [L178] SORT_3 var_26 = var_26_arg_0 ? var_26_arg_1 : var_26_arg_2; [L179] SORT_1 var_25_arg_0 = var_12; [L180] SORT_3 var_25_arg_1 = state_10; [L181] SORT_3 var_25_arg_2 = state_8; [L182] SORT_3 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L183] SORT_1 var_27_arg_0 = var_12; [L184] SORT_3 var_27_arg_1 = var_26; [L185] SORT_3 var_27_arg_2 = var_25; [L186] SORT_3 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L187] EXPR var_27 & mask_SORT_3 [L187] var_27 = var_27 & mask_SORT_3 [L188] SORT_1 var_29_arg_0 = var_12; [L189] SORT_3 var_29_arg_1 = state_16; [L190] SORT_3 var_29_arg_2 = state_14; [L191] SORT_3 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L192] SORT_1 var_28_arg_0 = var_12; [L193] SORT_3 var_28_arg_1 = state_10; [L194] SORT_3 var_28_arg_2 = state_8; [L195] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L196] SORT_1 var_30_arg_0 = var_20; [L197] SORT_3 var_30_arg_1 = var_29; [L198] SORT_3 var_30_arg_2 = var_28; [L199] SORT_3 var_30 = var_30_arg_0 ? var_30_arg_1 : var_30_arg_2; [L200] EXPR var_30 & mask_SORT_3 [L200] var_30 = var_30 & mask_SORT_3 [L201] SORT_3 var_31_arg_0 = var_27; [L202] SORT_3 var_31_arg_1 = var_30; [L203] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L204] SORT_1 var_32_arg_0 = var_24; [L205] SORT_1 var_32_arg_1 = var_31; [L206] EXPR var_32_arg_0 | var_32_arg_1 [L206] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L207] SORT_1 var_34_arg_0 = var_12; [L208] SORT_3 var_34_arg_1 = state_16; [L209] SORT_3 var_34_arg_2 = state_14; [L210] SORT_3 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L211] SORT_1 var_33_arg_0 = var_12; [L212] SORT_3 var_33_arg_1 = state_10; [L213] SORT_3 var_33_arg_2 = state_8; [L214] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L215] SORT_1 var_35_arg_0 = var_12; [L216] SORT_3 var_35_arg_1 = var_34; [L217] SORT_3 var_35_arg_2 = var_33; [L218] SORT_3 var_35 = var_35_arg_0 ? var_35_arg_1 : var_35_arg_2; [L219] EXPR var_35 & mask_SORT_3 [L219] var_35 = var_35 & mask_SORT_3 [L220] SORT_1 var_37_arg_0 = var_20; [L221] SORT_3 var_37_arg_1 = state_16; [L222] SORT_3 var_37_arg_2 = state_14; [L223] SORT_3 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L224] SORT_1 var_36_arg_0 = var_20; [L225] SORT_3 var_36_arg_1 = state_10; [L226] SORT_3 var_36_arg_2 = state_8; [L227] SORT_3 var_36 = var_36_arg_0 ? var_36_arg_1 : var_36_arg_2; [L228] SORT_1 var_38_arg_0 = var_20; [L229] SORT_3 var_38_arg_1 = var_37; [L230] SORT_3 var_38_arg_2 = var_36; [L231] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L232] EXPR var_38 & mask_SORT_3 [L232] var_38 = var_38 & mask_SORT_3 [L233] SORT_3 var_39_arg_0 = var_35; [L234] SORT_3 var_39_arg_1 = var_38; [L235] SORT_1 var_39 = var_39_arg_0 == var_39_arg_1; [L236] SORT_1 var_40_arg_0 = var_32; [L237] SORT_1 var_40_arg_1 = var_39; [L238] EXPR var_40_arg_0 | var_40_arg_1 [L238] SORT_1 var_40 = var_40_arg_0 | var_40_arg_1; [L239] SORT_1 var_42_arg_0 = var_20; [L240] SORT_3 var_42_arg_1 = state_16; [L241] SORT_3 var_42_arg_2 = state_14; [L242] SORT_3 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L243] SORT_1 var_41_arg_0 = var_20; [L244] SORT_3 var_41_arg_1 = state_10; [L245] SORT_3 var_41_arg_2 = state_8; [L246] SORT_3 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L247] SORT_1 var_43_arg_0 = var_12; [L248] SORT_3 var_43_arg_1 = var_42; [L249] SORT_3 var_43_arg_2 = var_41; [L250] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L251] EXPR var_43 & mask_SORT_3 [L251] var_43 = var_43 & mask_SORT_3 [L252] SORT_1 var_45_arg_0 = var_12; [L253] SORT_3 var_45_arg_1 = state_16; [L254] SORT_3 var_45_arg_2 = state_14; [L255] SORT_3 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L256] SORT_1 var_44_arg_0 = var_12; [L257] SORT_3 var_44_arg_1 = state_10; [L258] SORT_3 var_44_arg_2 = state_8; [L259] SORT_3 var_44 = var_44_arg_0 ? var_44_arg_1 : var_44_arg_2; [L260] SORT_1 var_46_arg_0 = var_20; [L261] SORT_3 var_46_arg_1 = var_45; [L262] SORT_3 var_46_arg_2 = var_44; [L263] SORT_3 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; [L264] EXPR var_46 & mask_SORT_3 [L264] var_46 = var_46 & mask_SORT_3 [L265] SORT_3 var_47_arg_0 = var_43; [L266] SORT_3 var_47_arg_1 = var_46; [L267] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L268] SORT_1 var_48_arg_0 = var_40; [L269] SORT_1 var_48_arg_1 = var_47; [L270] EXPR var_48_arg_0 | var_48_arg_1 [L270] SORT_1 var_48 = var_48_arg_0 | var_48_arg_1; [L271] SORT_1 var_50_arg_0 = var_20; [L272] SORT_3 var_50_arg_1 = state_16; [L273] SORT_3 var_50_arg_2 = state_14; [L274] SORT_3 var_50 = var_50_arg_0 ? var_50_arg_1 : var_50_arg_2; [L275] SORT_1 var_49_arg_0 = var_20; [L276] SORT_3 var_49_arg_1 = state_10; [L277] SORT_3 var_49_arg_2 = state_8; [L278] SORT_3 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; [L279] SORT_1 var_51_arg_0 = var_12; [L280] SORT_3 var_51_arg_1 = var_50; [L281] SORT_3 var_51_arg_2 = var_49; [L282] SORT_3 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L283] EXPR var_51 & mask_SORT_3 [L283] var_51 = var_51 & mask_SORT_3 [L284] SORT_1 var_53_arg_0 = var_20; [L285] SORT_3 var_53_arg_1 = state_16; [L286] SORT_3 var_53_arg_2 = state_14; [L287] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L288] SORT_1 var_52_arg_0 = var_20; [L289] SORT_3 var_52_arg_1 = state_10; [L290] SORT_3 var_52_arg_2 = state_8; [L291] SORT_3 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L292] SORT_1 var_54_arg_0 = var_20; [L293] SORT_3 var_54_arg_1 = var_53; [L294] SORT_3 var_54_arg_2 = var_52; [L295] SORT_3 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L296] EXPR var_54 & mask_SORT_3 [L296] var_54 = var_54 & mask_SORT_3 [L297] SORT_3 var_55_arg_0 = var_51; [L298] SORT_3 var_55_arg_1 = var_54; [L299] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L300] SORT_1 var_56_arg_0 = var_48; [L301] SORT_1 var_56_arg_1 = var_55; [L302] EXPR var_56_arg_0 | var_56_arg_1 [L302] SORT_1 var_56 = var_56_arg_0 | var_56_arg_1; [L303] SORT_1 var_58_arg_0 = var_12; [L304] SORT_3 var_58_arg_1 = state_16; [L305] SORT_3 var_58_arg_2 = state_14; [L306] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L307] SORT_1 var_57_arg_0 = var_12; [L308] SORT_3 var_57_arg_1 = state_10; [L309] SORT_3 var_57_arg_2 = state_8; [L310] SORT_3 var_57 = var_57_arg_0 ? var_57_arg_1 : var_57_arg_2; [L311] SORT_1 var_59_arg_0 = var_20; [L312] SORT_3 var_59_arg_1 = var_58; [L313] SORT_3 var_59_arg_2 = var_57; [L314] SORT_3 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L315] EXPR var_59 & mask_SORT_3 [L315] var_59 = var_59 & mask_SORT_3 [L316] SORT_1 var_61_arg_0 = var_20; [L317] SORT_3 var_61_arg_1 = state_16; [L318] SORT_3 var_61_arg_2 = state_14; [L319] SORT_3 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L320] SORT_1 var_60_arg_0 = var_20; [L321] SORT_3 var_60_arg_1 = state_10; [L322] SORT_3 var_60_arg_2 = state_8; [L323] SORT_3 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L324] SORT_1 var_62_arg_0 = var_20; [L325] SORT_3 var_62_arg_1 = var_61; [L326] SORT_3 var_62_arg_2 = var_60; [L327] SORT_3 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L328] EXPR var_62 & mask_SORT_3 [L328] var_62 = var_62 & mask_SORT_3 [L329] SORT_3 var_63_arg_0 = var_59; [L330] SORT_3 var_63_arg_1 = var_62; [L331] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L332] SORT_1 var_64_arg_0 = var_56; [L333] SORT_1 var_64_arg_1 = var_63; [L334] EXPR var_64_arg_0 | var_64_arg_1 [L334] SORT_1 var_64 = var_64_arg_0 | var_64_arg_1; [L335] SORT_1 var_68_arg_0 = var_12; [L336] SORT_3 var_68_arg_1 = state_16; [L337] SORT_3 var_68_arg_2 = state_14; [L338] SORT_3 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L339] SORT_1 var_67_arg_0 = var_12; [L340] SORT_3 var_67_arg_1 = state_10; [L341] SORT_3 var_67_arg_2 = state_8; [L342] SORT_3 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L343] SORT_1 var_69_arg_0 = var_12; [L344] SORT_3 var_69_arg_1 = var_68; [L345] SORT_3 var_69_arg_2 = var_67; [L346] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L347] EXPR var_69 & mask_SORT_3 [L347] var_69 = var_69 & mask_SORT_3 [L348] SORT_3 var_70_arg_0 = state_65; [L349] SORT_3 var_70_arg_1 = var_69; [L350] SORT_1 var_70 = var_70_arg_0 == var_70_arg_1; [L351] SORT_1 var_71_arg_0 = var_64; [L352] SORT_1 var_71_arg_1 = var_70; [L353] EXPR var_71_arg_0 | var_71_arg_1 [L353] SORT_1 var_71 = var_71_arg_0 | var_71_arg_1; [L354] SORT_1 var_73_arg_0 = var_20; [L355] SORT_3 var_73_arg_1 = state_16; [L356] SORT_3 var_73_arg_2 = state_14; [L357] SORT_3 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L358] SORT_1 var_72_arg_0 = var_20; [L359] SORT_3 var_72_arg_1 = state_10; [L360] SORT_3 var_72_arg_2 = state_8; [L361] SORT_3 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L362] SORT_1 var_74_arg_0 = var_12; [L363] SORT_3 var_74_arg_1 = var_73; [L364] SORT_3 var_74_arg_2 = var_72; [L365] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L366] EXPR var_74 & mask_SORT_3 [L366] var_74 = var_74 & mask_SORT_3 [L367] SORT_3 var_75_arg_0 = state_65; [L368] SORT_3 var_75_arg_1 = var_74; [L369] SORT_1 var_75 = var_75_arg_0 == var_75_arg_1; [L370] SORT_1 var_76_arg_0 = var_71; [L371] SORT_1 var_76_arg_1 = var_75; [L372] EXPR var_76_arg_0 | var_76_arg_1 [L372] SORT_1 var_76 = var_76_arg_0 | var_76_arg_1; [L373] SORT_1 var_78_arg_0 = var_12; [L374] SORT_3 var_78_arg_1 = state_16; [L375] SORT_3 var_78_arg_2 = state_14; [L376] SORT_3 var_78 = var_78_arg_0 ? var_78_arg_1 : var_78_arg_2; [L377] SORT_1 var_77_arg_0 = var_12; [L378] SORT_3 var_77_arg_1 = state_10; [L379] SORT_3 var_77_arg_2 = state_8; [L380] SORT_3 var_77 = var_77_arg_0 ? var_77_arg_1 : var_77_arg_2; [L381] SORT_1 var_79_arg_0 = var_20; [L382] SORT_3 var_79_arg_1 = var_78; [L383] SORT_3 var_79_arg_2 = var_77; [L384] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L385] EXPR var_79 & mask_SORT_3 [L385] var_79 = var_79 & mask_SORT_3 [L386] SORT_3 var_80_arg_0 = state_65; [L387] SORT_3 var_80_arg_1 = var_79; [L388] SORT_1 var_80 = var_80_arg_0 == var_80_arg_1; [L389] SORT_1 var_81_arg_0 = var_76; [L390] SORT_1 var_81_arg_1 = var_80; [L391] EXPR var_81_arg_0 | var_81_arg_1 [L391] SORT_1 var_81 = var_81_arg_0 | var_81_arg_1; [L392] SORT_1 var_83_arg_0 = var_20; [L393] SORT_3 var_83_arg_1 = state_16; [L394] SORT_3 var_83_arg_2 = state_14; [L395] SORT_3 var_83 = var_83_arg_0 ? var_83_arg_1 : var_83_arg_2; [L396] SORT_1 var_82_arg_0 = var_20; [L397] SORT_3 var_82_arg_1 = state_10; [L398] SORT_3 var_82_arg_2 = state_8; [L399] SORT_3 var_82 = var_82_arg_0 ? var_82_arg_1 : var_82_arg_2; [L400] SORT_1 var_84_arg_0 = var_20; [L401] SORT_3 var_84_arg_1 = var_83; [L402] SORT_3 var_84_arg_2 = var_82; [L403] SORT_3 var_84 = var_84_arg_0 ? var_84_arg_1 : var_84_arg_2; [L404] EXPR var_84 & mask_SORT_3 [L404] var_84 = var_84 & mask_SORT_3 [L405] SORT_3 var_85_arg_0 = state_65; [L406] SORT_3 var_85_arg_1 = var_84; [L407] SORT_1 var_85 = var_85_arg_0 == var_85_arg_1; [L408] SORT_1 var_86_arg_0 = var_81; [L409] SORT_1 var_86_arg_1 = var_85; [L410] EXPR var_86_arg_0 | var_86_arg_1 [L410] SORT_1 var_86 = var_86_arg_0 | var_86_arg_1; [L411] SORT_1 var_90_arg_0 = var_12; [L412] SORT_3 var_90_arg_1 = state_16; [L413] SORT_3 var_90_arg_2 = state_14; [L414] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L415] SORT_1 var_89_arg_0 = var_12; [L416] SORT_3 var_89_arg_1 = state_10; [L417] SORT_3 var_89_arg_2 = state_8; [L418] SORT_3 var_89 = var_89_arg_0 ? var_89_arg_1 : var_89_arg_2; [L419] SORT_1 var_91_arg_0 = var_12; [L420] SORT_3 var_91_arg_1 = var_90; [L421] SORT_3 var_91_arg_2 = var_89; [L422] SORT_3 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L423] EXPR var_91 & mask_SORT_3 [L423] var_91 = var_91 & mask_SORT_3 [L424] SORT_3 var_92_arg_0 = state_87; [L425] SORT_3 var_92_arg_1 = var_91; [L426] SORT_1 var_92 = var_92_arg_0 == var_92_arg_1; [L427] SORT_1 var_93_arg_0 = var_86; [L428] SORT_1 var_93_arg_1 = var_92; [L429] EXPR var_93_arg_0 | var_93_arg_1 [L429] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L430] SORT_1 var_95_arg_0 = var_20; [L431] SORT_3 var_95_arg_1 = state_16; [L432] SORT_3 var_95_arg_2 = state_14; [L433] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L434] SORT_1 var_94_arg_0 = var_20; [L435] SORT_3 var_94_arg_1 = state_10; [L436] SORT_3 var_94_arg_2 = state_8; [L437] SORT_3 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L438] SORT_1 var_96_arg_0 = var_12; [L439] SORT_3 var_96_arg_1 = var_95; [L440] SORT_3 var_96_arg_2 = var_94; [L441] SORT_3 var_96 = var_96_arg_0 ? var_96_arg_1 : var_96_arg_2; [L442] EXPR var_96 & mask_SORT_3 [L442] var_96 = var_96 & mask_SORT_3 [L443] SORT_3 var_97_arg_0 = state_87; [L444] SORT_3 var_97_arg_1 = var_96; [L445] SORT_1 var_97 = var_97_arg_0 == var_97_arg_1; [L446] SORT_1 var_98_arg_0 = var_93; [L447] SORT_1 var_98_arg_1 = var_97; [L448] EXPR var_98_arg_0 | var_98_arg_1 [L448] SORT_1 var_98 = var_98_arg_0 | var_98_arg_1; [L449] SORT_1 var_100_arg_0 = var_12; [L450] SORT_3 var_100_arg_1 = state_16; [L451] SORT_3 var_100_arg_2 = state_14; [L452] SORT_3 var_100 = var_100_arg_0 ? var_100_arg_1 : var_100_arg_2; [L453] SORT_1 var_99_arg_0 = var_12; [L454] SORT_3 var_99_arg_1 = state_10; [L455] SORT_3 var_99_arg_2 = state_8; [L456] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L457] SORT_1 var_101_arg_0 = var_20; [L458] SORT_3 var_101_arg_1 = var_100; [L459] SORT_3 var_101_arg_2 = var_99; [L460] SORT_3 var_101 = var_101_arg_0 ? var_101_arg_1 : var_101_arg_2; [L461] EXPR var_101 & mask_SORT_3 [L461] var_101 = var_101 & mask_SORT_3 [L462] SORT_3 var_102_arg_0 = state_87; [L463] SORT_3 var_102_arg_1 = var_101; [L464] SORT_1 var_102 = var_102_arg_0 == var_102_arg_1; [L465] SORT_1 var_103_arg_0 = var_98; [L466] SORT_1 var_103_arg_1 = var_102; [L467] EXPR var_103_arg_0 | var_103_arg_1 [L467] SORT_1 var_103 = var_103_arg_0 | var_103_arg_1; [L468] SORT_1 var_105_arg_0 = var_20; [L469] SORT_3 var_105_arg_1 = state_16; [L470] SORT_3 var_105_arg_2 = state_14; [L471] SORT_3 var_105 = var_105_arg_0 ? var_105_arg_1 : var_105_arg_2; [L472] SORT_1 var_104_arg_0 = var_20; [L473] SORT_3 var_104_arg_1 = state_10; [L474] SORT_3 var_104_arg_2 = state_8; [L475] SORT_3 var_104 = var_104_arg_0 ? var_104_arg_1 : var_104_arg_2; [L476] SORT_1 var_106_arg_0 = var_20; [L477] SORT_3 var_106_arg_1 = var_105; [L478] SORT_3 var_106_arg_2 = var_104; [L479] SORT_3 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L480] EXPR var_106 & mask_SORT_3 [L480] var_106 = var_106 & mask_SORT_3 [L481] SORT_3 var_107_arg_0 = state_87; [L482] SORT_3 var_107_arg_1 = var_106; [L483] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L484] SORT_1 var_108_arg_0 = var_103; [L485] SORT_1 var_108_arg_1 = var_107; [L486] EXPR var_108_arg_0 | var_108_arg_1 [L486] SORT_1 var_108 = var_108_arg_0 | var_108_arg_1; [L487] SORT_3 var_109_arg_0 = state_65; [L488] SORT_3 var_109_arg_1 = state_87; [L489] SORT_1 var_109 = var_109_arg_0 == var_109_arg_1; [L490] SORT_1 var_110_arg_0 = var_108; [L491] SORT_1 var_110_arg_1 = var_109; [L492] EXPR var_110_arg_0 | var_110_arg_1 [L492] SORT_1 var_110 = var_110_arg_0 | var_110_arg_1; [L493] SORT_1 var_113_arg_0 = var_110; [L494] SORT_1 var_113 = ~var_113_arg_0; [L495] SORT_1 var_114_arg_0 = var_20; [L496] SORT_1 var_114_arg_1 = var_113; [L497] EXPR var_114_arg_0 & var_114_arg_1 [L497] SORT_1 var_114 = var_114_arg_0 & var_114_arg_1; [L498] EXPR var_114 & mask_SORT_1 [L498] var_114 = var_114 & mask_SORT_1 [L499] SORT_1 bad_115_arg_0 = var_114; [L500] CALL __VERIFIER_assert(!(bad_115_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: 10.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.9s 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 [2023-11-23 20:35:08,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire --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 9c5bb475ab11cbd56a79545cadb0461b70dfc72704bda231e812439b6cc3e249 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:11,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:11,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-23 20:35:11,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:11,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:11,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:11,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:11,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:11,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:11,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:11,595 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:11,595 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:11,596 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:11,597 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:11,598 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:11,598 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:11,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:11,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:11,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:11,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:11,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:11,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:11,603 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:35:11,603 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:35:11,603 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:35:11,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:11,604 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:11,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:11,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:35:11,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:11,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:11,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:11,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:11,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:11,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:11,608 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:35:11,608 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:11,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:11,609 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:11,609 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:11,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:11,610 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5bb475ab11cbd56a79545cadb0461b70dfc72704bda231e812439b6cc3e249 [2023-11-23 20:35:11,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:12,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:12,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:12,008 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:12,008 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:12,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c [2023-11-23 20:35:15,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:15,723 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:15,724 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c [2023-11-23 20:35:15,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data/9e30fe259/00742ed550f14c5aa2203fa3da7aea15/FLAG8e9347a58 [2023-11-23 20:35:15,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/data/9e30fe259/00742ed550f14c5aa2203fa3da7aea15 [2023-11-23 20:35:15,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:15,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:15,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:15,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:15,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:15,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:15" (1/1) ... [2023-11-23 20:35:15,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e34856b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:15, skipping insertion in model container [2023-11-23 20:35:15,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:15" (1/1) ... [2023-11-23 20:35:15,897 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:16,096 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c[1259,1272] [2023-11-23 20:35:16,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:16,449 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:16,462 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_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p16.c[1259,1272] [2023-11-23 20:35:16,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:16,673 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:16,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16 WrapperNode [2023-11-23 20:35:16,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:16,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:16,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:16,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:16,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,863 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1408 [2023-11-23 20:35:16,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:16,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:16,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:16,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:16,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:16,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:16,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:16,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:16,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:17,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:17,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:17,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:17,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:35:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:17,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:17,459 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:17,463 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:19,283 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:19,379 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:19,379 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:19,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:19 BoogieIcfgContainer [2023-11-23 20:35:19,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:19,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:19,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:19,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:19,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:15" (1/3) ... [2023-11-23 20:35:19,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295ec841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:19, skipping insertion in model container [2023-11-23 20:35:19,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (2/3) ... [2023-11-23 20:35:19,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295ec841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:19, skipping insertion in model container [2023-11-23 20:35:19,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:19" (3/3) ... [2023-11-23 20:35:19,395 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p16.c [2023-11-23 20:35:19,435 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:19,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:19,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:19,504 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;@52ae5e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:19,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-23 20:35:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:35:19,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:19,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 20:35:19,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:19,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:19,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-23 20:35:19,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:19,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493649478] [2023-11-23 20:35:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:19,545 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 [2023-11-23 20:35:19,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:19,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:35:19,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:20,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-23 20:35:20,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:20,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:20,577 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:20,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493649478] [2023-11-23 20:35:20,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493649478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:20,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:20,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:20,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976570504] [2023-11-23 20:35:20,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:20,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:35:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:20,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:35:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:20,626 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 20:35:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:20,883 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-23 20:35:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:35:20,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-23 20:35:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:20,893 INFO L225 Difference]: With dead ends: 16 [2023-11-23 20:35:20,893 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 20:35:20,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:20,900 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:20,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:35:20,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 20:35:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 20:35:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2023-11-23 20:35:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 20:35:20,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 20:35:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:20,933 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 20:35:20,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 20:35:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 20:35:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:35:20,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:20,934 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 20:35:20,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:21,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:21,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:21,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-23 20:35:21,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:21,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764637124] [2023-11-23 20:35:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:21,146 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 [2023-11-23 20:35:21,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:21,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:35:21,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:24,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-23 20:35:24,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:24,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:25,314 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:25,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764637124] [2023-11-23 20:35:25,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764637124] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:25,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2086186217] [2023-11-23 20:35:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:25,321 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:35:25,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:35:25,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:35:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:26,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-23 20:35:26,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:27,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:27,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2086186217] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793656226] [2023-11-23 20:35:27,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:27,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:27,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:27,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:28,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae1c142-d76e-4a55-b59e-79ba7b07ae9b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:35:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:28,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-23 20:35:28,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:28,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:29,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793656226] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:29,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:35:29,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5, 4, 6, 5] total 12 [2023-11-23 20:35:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035553448] [2023-11-23 20:35:29,654 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:35:29,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 20:35:29,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:29,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 20:35:29,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-23 20:35:29,658 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 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)