./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh --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 fea6ddf5a312efb31106b0b076d25211f4d930aa5997189aee01372ba555a622 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:52:39,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:52:39,171 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:52:39,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:52:39,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:52:39,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:52:39,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:52:39,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:52:39,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:52:39,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:52:39,205 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:52:39,205 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:52:39,206 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:52:39,206 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:52:39,207 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:52:39,207 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:52:39,207 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:52:39,208 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:52:39,208 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:52:39,209 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:52:39,209 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:52:39,210 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:52:39,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:52:39,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:52:39,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:52:39,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:52:39,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:52:39,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:52:39,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:52:39,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:52:39,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:52:39,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:52:39,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:52:39,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:52:39,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:52:39,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:52:39,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:52:39,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:52:39,216 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:52:39,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:52:39,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:52:39,217 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:52:39,217 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:52:39,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:52:39,218 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fea6ddf5a312efb31106b0b076d25211f4d930aa5997189aee01372ba555a622 [2023-12-02 13:52:39,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:52:39,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:52:39,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:52:39,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:52:39,450 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:52:39,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2023-12-02 13:52:42,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:52:42,487 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:52:42,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2023-12-02 13:52:42,508 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data/dc8fc8c3d/1596f1f89beb4a2c912d3eecd3834d8d/FLAG3e375194e [2023-12-02 13:52:42,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data/dc8fc8c3d/1596f1f89beb4a2c912d3eecd3834d8d [2023-12-02 13:52:42,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:52:42,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:52:42,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:52:42,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:52:42,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:52:42,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:42" (1/1) ... [2023-12-02 13:52:42,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6496b509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:42, skipping insertion in model container [2023-12-02 13:52:42,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:42" (1/1) ... [2023-12-02 13:52:42,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:52:42,808 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1244,1257] [2023-12-02 13:52:43,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:52:43,200 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:52:43,211 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1244,1257] [2023-12-02 13:52:43,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:52:43,408 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:52:43,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43 WrapperNode [2023-12-02 13:52:43,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:52:43,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:52:43,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:52:43,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:52:43,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:43,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:43,955 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5544 [2023-12-02 13:52:43,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:52:43,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:52:43,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:52:43,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:52:43,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:43,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:52:44,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:52:44,511 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:52:44,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:52:44,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (1/1) ... [2023-12-02 13:52:44,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:52:44,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:52:44,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:52:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:52:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:52:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:52:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:52:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:52:45,137 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:52:45,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:52:48,043 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:52:54,265 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:52:54,266 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:52:54,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:54 BoogieIcfgContainer [2023-12-02 13:52:54,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:52:54,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:52:54,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:52:54,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:52:54,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:52:42" (1/3) ... [2023-12-02 13:52:54,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f2a21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:54, skipping insertion in model container [2023-12-02 13:52:54,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:43" (2/3) ... [2023-12-02 13:52:54,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f2a21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:54, skipping insertion in model container [2023-12-02 13:52:54,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:54" (3/3) ... [2023-12-02 13:52:54,276 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mpeg.c [2023-12-02 13:52:54,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:52:54,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:52:54,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:52:54,348 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;@2ab0c456, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:52:54,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:52:54,352 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) [2023-12-02 13:52:54,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:52:54,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:52:54,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:52:54,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:52:54,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:52:54,364 INFO L85 PathProgramCache]: Analyzing trace with hash 113107989, now seen corresponding path program 1 times [2023-12-02 13:52:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:52:54,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70153264] [2023-12-02 13:52:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:52:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:52:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:52:54,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:52:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:52:55,307 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:52:55,309 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:52:55,310 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:52:55,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:52:55,317 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:52:55,321 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:52:55,364 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 13:52:55,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:52:55 BoogieIcfgContainer [2023-12-02 13:52:55,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:52:55,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:52:55,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:52:55,385 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:52:55,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:54" (3/4) ... [2023-12-02 13:52:55,388 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:52:55,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:52:55,390 INFO L158 Benchmark]: Toolchain (without parser) took 12863.93ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 987.8MB). Free memory was 107.7MB in the beginning and 448.1MB in the end (delta: -340.4MB). Peak memory consumption was 651.2MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,390 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:52:55,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 881.26ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 50.2MB in the end (delta: 57.4MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 546.24ms. Allocated memory was 142.6MB in the beginning and 199.2MB in the end (delta: 56.6MB). Free memory was 50.2MB in the beginning and 89.6MB in the end (delta: -39.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,392 INFO L158 Benchmark]: Boogie Preprocessor took 554.00ms. Allocated memory is still 199.2MB. Free memory was 89.6MB in the beginning and 66.6MB in the end (delta: 22.9MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,393 INFO L158 Benchmark]: RCFGBuilder took 9756.39ms. Allocated memory was 199.2MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 66.2MB in the beginning and 574.9MB in the end (delta: -508.7MB). Peak memory consumption was 776.2MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,394 INFO L158 Benchmark]: TraceAbstraction took 1114.95ms. Allocated memory is still 1.1GB. Free memory was 574.9MB in the beginning and 449.1MB in the end (delta: 125.8MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,394 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 1.1GB. Free memory was 448.1MB in the beginning and 448.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:52:55,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 881.26ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 50.2MB in the end (delta: 57.4MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 546.24ms. Allocated memory was 142.6MB in the beginning and 199.2MB in the end (delta: 56.6MB). Free memory was 50.2MB in the beginning and 89.6MB in the end (delta: -39.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 554.00ms. Allocated memory is still 199.2MB. Free memory was 89.6MB in the beginning and 66.6MB in the end (delta: 22.9MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * RCFGBuilder took 9756.39ms. Allocated memory was 199.2MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 66.2MB in the beginning and 574.9MB in the end (delta: -508.7MB). Peak memory consumption was 776.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1114.95ms. Allocated memory is still 1.1GB. Free memory was 574.9MB in the beginning and 449.1MB in the end (delta: 125.8MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 1.1GB. Free memory was 448.1MB in the beginning and 448.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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 bitwiseAnd at line 369. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 8); [L33] const SORT_23 msb_SORT_23 = (SORT_23)1 << (8 - 1); [L35] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 7); [L36] const SORT_27 msb_SORT_27 = (SORT_27)1 << (7 - 1); [L38] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 3); [L39] const SORT_32 msb_SORT_32 = (SORT_32)1 << (3 - 1); [L41] const SORT_40 mask_SORT_40 = (SORT_40)-1 >> (sizeof(SORT_40) * 8 - 24); [L42] const SORT_40 msb_SORT_40 = (SORT_40)1 << (24 - 1); [L44] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 40); [L45] const SORT_43 msb_SORT_43 = (SORT_43)1 << (40 - 1); [L47] const SORT_70 mask_SORT_70 = (SORT_70)-1 >> (sizeof(SORT_70) * 8 - 2); [L48] const SORT_70 msb_SORT_70 = (SORT_70)1 << (2 - 1); [L50] const SORT_76 mask_SORT_76 = (SORT_76)-1 >> (sizeof(SORT_76) * 8 - 16); [L51] const SORT_76 msb_SORT_76 = (SORT_76)1 << (16 - 1); [L53] const SORT_100 mask_SORT_100 = (SORT_100)-1 >> (sizeof(SORT_100) * 8 - 13); [L54] const SORT_100 msb_SORT_100 = (SORT_100)1 << (13 - 1); [L56] const SORT_111 mask_SORT_111 = (SORT_111)-1 >> (sizeof(SORT_111) * 8 - 33); [L57] const SORT_111 msb_SORT_111 = (SORT_111)1 << (33 - 1); [L59] const SORT_118 mask_SORT_118 = (SORT_118)-1 >> (sizeof(SORT_118) * 8 - 4); [L60] const SORT_118 msb_SORT_118 = (SORT_118)1 << (4 - 1); [L62] const SORT_1 var_4 = 0; [L63] const SORT_7 var_9 = 0; [L64] const SORT_1 var_11 = 1; [L65] const SORT_7 var_15 = 1; [L66] const SORT_23 var_24 = 255; [L67] const SORT_32 var_33 = 0; [L68] const SORT_70 var_71 = 0; [L69] const SORT_23 var_85 = 0; [L70] const SORT_76 var_91 = 0; [L71] const SORT_118 var_119 = 0; [L72] const SORT_118 var_128 = 15; [L73] const SORT_23 var_153 = 93; [L74] const SORT_32 var_156 = 3; [L75] const SORT_32 var_177 = 7; [L76] const SORT_32 var_189 = 1; [L77] const SORT_32 var_199 = 2; [L78] const SORT_23 var_209 = 1; [L79] const SORT_32 var_258 = 5; [L80] const SORT_32 var_266 = 6; [L81] const SORT_32 var_270 = 4; [L82] const SORT_23 var_327 = 128; [L83] const SORT_23 var_335 = 221; [L84] const SORT_70 var_426 = 2; [L85] const SORT_70 var_429 = 1; [L86] const SORT_23 var_476 = 3; [L87] const SORT_23 var_479 = 131; [L88] const SORT_23 var_482 = 195; [L89] const SORT_23 var_485 = 7; [L90] const SORT_23 var_488 = 67; [L91] const SORT_118 var_522 = 3; [L92] const SORT_118 var_531 = 4; [L93] const SORT_118 var_552 = 6; [L94] const SORT_118 var_567 = 7; [L95] const SORT_118 var_572 = 5; [L96] const SORT_23 var_584 = 185; [L97] const SORT_23 var_588 = 186; [L98] const SORT_118 var_609 = 8; [L99] const SORT_70 var_627 = 3; [L100] const SORT_23 var_688 = 15; [L101] const SORT_118 var_714 = 13; [L102] const SORT_118 var_731 = 1; [L103] const SORT_118 var_733 = 2; [L104] const SORT_118 var_784 = 9; [L105] const SORT_118 var_785 = 10; [L106] const SORT_118 var_791 = 11; [L107] const SORT_118 var_792 = 12; [L108] const SORT_23 var_867 = 191; [L110] SORT_1 input_2; [L111] SORT_1 input_3; [L112] SORT_27 input_28; [L113] SORT_40 input_41; [L114] SORT_43 input_44; [L115] SORT_40 input_52; [L116] SORT_40 input_54; [L117] SORT_40 input_56; [L118] SORT_40 input_58; [L119] SORT_40 input_60; [L120] SORT_40 input_62; [L121] SORT_40 input_64; [L122] SORT_40 input_66; [L123] SORT_76 input_77; [L124] SORT_40 input_79; [L125] SORT_23 input_81; [L126] SORT_76 input_88; [L127] SORT_23 input_90; [L128] SORT_76 input_94; [L129] SORT_1 input_98; [L130] SORT_100 input_101; [L131] SORT_23 input_103; [L132] SORT_111 input_112; [L133] SORT_111 input_114; [L134] SORT_1 input_124; [L135] SORT_1 input_131; [L136] SORT_1 input_150; [L137] SORT_1 input_151; [L138] SORT_1 input_152; [L139] SORT_32 input_186; [L140] SORT_32 input_187; [L141] SORT_32 input_188; [L142] SORT_32 input_197; [L143] SORT_32 input_198; [L144] SORT_32 input_207; [L145] SORT_32 input_208; [L146] SORT_32 input_217; [L147] SORT_32 input_218; [L148] SORT_32 input_232; [L149] SORT_1 input_281; [L150] SORT_32 input_304; [L151] SORT_32 input_305; [L152] SORT_32 input_306; [L153] SORT_32 input_316; [L154] SORT_32 input_317; [L155] SORT_32 input_325; [L156] SORT_32 input_326; [L157] SORT_32 input_333; [L158] SORT_32 input_334; [L159] SORT_1 input_351; [L160] SORT_1 input_352; [L161] SORT_1 input_353; [L162] SORT_32 input_366; [L163] SORT_70 input_415; [L164] SORT_70 input_416; [L165] SORT_70 input_417; [L166] SORT_1 input_439; [L167] SORT_1 input_470; [L168] SORT_1 input_471; [L169] SORT_1 input_472; [L170] SORT_1 input_473; [L171] SORT_1 input_474; [L172] SORT_1 input_475; [L173] SORT_23 input_509; [L174] SORT_23 input_510; [L175] SORT_23 input_511; [L176] SORT_76 input_525; [L177] SORT_76 input_539; [L178] SORT_76 input_540; [L179] SORT_76 input_541; [L180] SORT_76 input_560; [L181] SORT_1 input_579; [L182] SORT_1 input_580; [L183] SORT_1 input_581; [L184] SORT_1 input_582; [L185] SORT_1 input_583; [L186] SORT_1 input_587; [L187] SORT_1 input_605; [L188] SORT_1 input_617; [L189] SORT_1 input_623; [L190] SORT_70 input_636; [L191] SORT_70 input_645; [L192] SORT_70 input_646; [L193] SORT_70 input_659; [L194] SORT_70 input_660; [L195] SORT_70 input_661; [L196] SORT_70 input_675; [L197] SORT_1 input_685; [L198] SORT_1 input_686; [L199] SORT_1 input_687; [L200] SORT_1 input_704; [L201] SORT_118 input_723; [L202] SORT_118 input_724; [L203] SORT_118 input_725; [L204] SORT_118 input_726; [L205] SORT_118 input_727; [L206] SORT_118 input_728; [L207] SORT_118 input_729; [L208] SORT_118 input_730; [L209] SORT_118 input_766; [L210] SORT_118 input_812; [L211] SORT_118 input_813; [L212] SORT_118 input_814; [L213] SORT_118 input_838; [L214] SORT_118 input_846; [L215] SORT_118 input_847; [L216] SORT_118 input_848; [L217] SORT_118 input_849; [L218] SORT_118 input_850; [L219] SORT_118 input_852; [L220] SORT_118 input_866; [L221] SORT_118 input_877; [L222] SORT_118 input_878; [L223] SORT_118 input_879; [L224] SORT_118 input_891; [L225] SORT_118 input_892; [L226] SORT_118 input_893; [L227] SORT_118 input_894; [L228] SORT_118 input_895; [L229] SORT_118 input_896; [L230] SORT_118 input_897; [L231] SORT_118 input_901; [L232] SORT_118 input_909; [L233] SORT_118 input_923; [L234] SORT_118 input_927; [L235] SORT_23 input_943; [L236] SORT_23 input_944; [L237] SORT_23 input_945; [L238] SORT_23 input_946; [L239] SORT_23 input_947; [L240] SORT_23 input_949; [L241] SORT_1 input_964; [L242] SORT_1 input_965; [L243] SORT_1 input_966; [L244] SORT_1 input_976; [L245] SORT_1 input_977; [L246] SORT_1 input_978; [L247] SORT_1 input_992; [L248] SORT_1 input_998; [L249] SORT_1 input_999; [L250] SORT_1 input_1000; [L251] SORT_1 input_1010; [L252] SORT_1 input_1011; [L253] SORT_1 input_1012; [L255] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L255] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L256] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L256] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L257] EXPR __VERIFIER_nondet_uchar() & mask_SORT_23 [L257] SORT_23 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L258] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L258] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L259] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 [L259] SORT_32 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L260] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 [L260] SORT_32 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L261] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 [L261] SORT_32 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L262] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L262] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L263] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 [L263] SORT_32 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L264] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L264] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L265] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 [L265] SORT_32 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L266] EXPR __VERIFIER_nondet_uchar() & mask_SORT_70 [L266] SORT_70 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_70; [L267] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L267] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L268] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L268] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L269] EXPR __VERIFIER_nondet_uchar() & mask_SORT_23 [L269] SORT_23 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L270] EXPR __VERIFIER_nondet_ushort() & mask_SORT_76 [L270] SORT_76 state_96 = __VERIFIER_nondet_ushort() & mask_SORT_76; [L271] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L271] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L272] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L272] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L273] EXPR __VERIFIER_nondet_uchar() & mask_SORT_70 [L273] SORT_70 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_70; [L274] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L274] SORT_1 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L275] EXPR __VERIFIER_nondet_uchar() & mask_SORT_118 [L275] SORT_118 state_120 = __VERIFIER_nondet_uchar() & mask_SORT_118; [L276] EXPR __VERIFIER_nondet_uchar() & mask_SORT_118 [L276] SORT_118 state_122 = __VERIFIER_nondet_uchar() & mask_SORT_118; [L277] EXPR __VERIFIER_nondet_ushort() & mask_SORT_76 [L277] SORT_76 state_126 = __VERIFIER_nondet_ushort() & mask_SORT_76; [L278] EXPR __VERIFIER_nondet_uchar() & mask_SORT_118 [L278] SORT_118 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_118; [L279] EXPR __VERIFIER_nondet_uchar() & mask_SORT_23 [L279] SORT_23 state_133 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L280] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L280] SORT_1 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L281] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L281] SORT_1 state_137 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L282] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L282] SORT_1 state_139 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L283] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L283] SORT_1 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L284] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L284] SORT_1 state_146 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L285] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L285] SORT_1 state_148 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L287] SORT_1 init_6_arg_1 = var_4; [L288] state_5 = init_6_arg_1 [L289] SORT_1 init_13_arg_1 = var_11; [L290] state_12 = init_13_arg_1 [L291] SORT_23 init_26_arg_1 = var_24; [L292] state_25 = init_26_arg_1 [L293] SORT_1 init_31_arg_1 = var_4; [L294] state_30 = init_31_arg_1 [L295] SORT_32 init_35_arg_1 = var_33; [L296] state_34 = init_35_arg_1 [L297] SORT_32 init_37_arg_1 = var_33; [L298] state_36 = init_37_arg_1 [L299] SORT_32 init_39_arg_1 = var_33; [L300] state_38 = init_39_arg_1 [L301] SORT_1 init_47_arg_1 = var_4; [L302] state_46 = init_47_arg_1 [L303] SORT_32 init_49_arg_1 = var_33; [L304] state_48 = init_49_arg_1 [L305] SORT_1 init_51_arg_1 = var_4; [L306] state_50 = init_51_arg_1 [L307] SORT_32 init_69_arg_1 = var_33; [L308] state_68 = init_69_arg_1 [L309] SORT_70 init_73_arg_1 = var_71; [L310] state_72 = init_73_arg_1 [L311] SORT_1 init_75_arg_1 = var_4; [L312] state_74 = init_75_arg_1 [L313] SORT_1 init_84_arg_1 = var_4; [L314] state_83 = init_84_arg_1 [L315] SORT_23 init_87_arg_1 = var_85; [L316] state_86 = init_87_arg_1 [L317] SORT_76 init_97_arg_1 = var_91; [L318] state_96 = init_97_arg_1 [L319] SORT_1 init_106_arg_1 = var_4; [L320] state_105 = init_106_arg_1 [L321] SORT_1 init_108_arg_1 = var_4; [L322] state_107 = init_108_arg_1 [L323] SORT_70 init_110_arg_1 = var_71; [L324] state_109 = init_110_arg_1 [L325] SORT_1 init_117_arg_1 = var_4; [L326] state_116 = init_117_arg_1 [L327] SORT_118 init_121_arg_1 = var_119; [L328] state_120 = init_121_arg_1 [L329] SORT_118 init_123_arg_1 = var_119; [L330] state_122 = init_123_arg_1 [L331] SORT_76 init_127_arg_1 = var_91; [L332] state_126 = init_127_arg_1 [L333] SORT_118 init_130_arg_1 = var_128; [L334] state_129 = init_130_arg_1 [L335] SORT_23 init_134_arg_1 = var_85; [L336] state_133 = init_134_arg_1 [L337] SORT_1 init_136_arg_1 = var_4; [L338] state_135 = init_136_arg_1 [L339] SORT_1 init_138_arg_1 = var_4; [L340] state_137 = init_138_arg_1 [L341] SORT_1 init_140_arg_1 = var_4; [L342] state_139 = init_140_arg_1 [L343] SORT_1 init_142_arg_1 = var_4; [L344] state_141 = init_142_arg_1 [L345] SORT_1 init_147_arg_1 = var_4; [L346] state_146 = init_147_arg_1 [L347] SORT_1 init_149_arg_1 = var_4; [L348] state_148 = init_149_arg_1 VAL [init_106_arg_1=0, init_108_arg_1=0, init_110_arg_1=0, init_117_arg_1=0, init_121_arg_1=0, init_123_arg_1=0, init_127_arg_1=0, init_130_arg_1=15, init_134_arg_1=0, init_136_arg_1=0, init_138_arg_1=0, init_13_arg_1=1, init_140_arg_1=0, init_142_arg_1=0, init_147_arg_1=0, init_149_arg_1=0, init_26_arg_1=255, init_31_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_69_arg_1=0, init_6_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, init_84_arg_1=0, init_87_arg_1=0, init_97_arg_1=0, mask_SORT_100=8191, mask_SORT_111=8589934591, mask_SORT_118=15, mask_SORT_1=1, mask_SORT_23=255, mask_SORT_27=127, mask_SORT_32=7, mask_SORT_40=16777215, mask_SORT_43=1099511627775, mask_SORT_70=3, mask_SORT_76=65535, mask_SORT_7=4294967295, msb_SORT_100=4096, msb_SORT_111=4294967296, msb_SORT_118=8, msb_SORT_1=1, msb_SORT_23=128, msb_SORT_27=64, msb_SORT_32=4, msb_SORT_40=8388608, msb_SORT_43=549755813888, msb_SORT_70=2, msb_SORT_76=32768, msb_SORT_7=2147483648, state_105=0, state_107=0, state_109=0, state_116=0, state_120=0, state_122=0, state_126=0, state_129=15, state_12=1, state_133=0, state_135=0, state_137=0, state_139=0, state_141=0, state_146=0, state_148=0, state_25=255, state_30=0, state_34=0, state_36=0, state_38=0, state_46=0, state_48=0, state_50=0, state_5=0, state_68=0, state_72=0, state_74=0, state_83=0, state_86=0, state_96=0, var_119=0, var_11=1, var_128=15, var_153=93, var_156=3, var_15=1, var_177=7, var_189=1, var_199=2, var_209=1, var_24=255, var_258=5, var_266=6, var_270=4, var_327=128, var_335=221, var_33=0, var_426=2, var_429=1, var_476=3, var_479=131, var_482=195, var_485=7, var_488=67, var_4=0, var_522=3, var_531=4, var_552=6, var_567=7, var_572=5, var_584=185, var_588=186, var_609=8, var_627=3, var_688=15, var_714=13, var_71=0, var_731=1, var_733=2, var_784=9, var_785=10, var_791=11, var_792=12, var_85=0, var_867=191, var_91=0, var_9=0] [L351] input_2 = __VERIFIER_nondet_uchar() [L352] input_3 = __VERIFIER_nondet_uchar() [L353] input_28 = __VERIFIER_nondet_uchar() [L354] input_41 = __VERIFIER_nondet_uint() [L355] input_44 = __VERIFIER_nondet_ulong() [L356] input_52 = __VERIFIER_nondet_uint() [L357] input_54 = __VERIFIER_nondet_uint() [L358] input_56 = __VERIFIER_nondet_uint() [L359] input_58 = __VERIFIER_nondet_uint() [L360] input_60 = __VERIFIER_nondet_uint() [L361] input_62 = __VERIFIER_nondet_uint() [L362] input_64 = __VERIFIER_nondet_uint() [L363] input_66 = __VERIFIER_nondet_uint() [L364] input_77 = __VERIFIER_nondet_ushort() [L365] input_79 = __VERIFIER_nondet_uint() [L366] input_81 = __VERIFIER_nondet_uchar() [L367] input_88 = __VERIFIER_nondet_ushort() [L368] input_90 = __VERIFIER_nondet_uchar() [L369] EXPR input_90 & mask_SORT_23 [L369] input_90 = input_90 & mask_SORT_23 [L370] input_94 = __VERIFIER_nondet_ushort() [L371] input_98 = __VERIFIER_nondet_uchar() [L372] input_101 = __VERIFIER_nondet_ushort() [L373] input_103 = __VERIFIER_nondet_uchar() [L374] input_112 = __VERIFIER_nondet_ulong() [L375] input_114 = __VERIFIER_nondet_ulong() [L376] input_124 = __VERIFIER_nondet_uchar() [L377] input_131 = __VERIFIER_nondet_uchar() [L378] input_150 = __VERIFIER_nondet_uchar() [L379] input_151 = __VERIFIER_nondet_uchar() [L380] input_152 = __VERIFIER_nondet_uchar() [L381] input_186 = __VERIFIER_nondet_uchar() [L382] input_187 = __VERIFIER_nondet_uchar() [L383] input_188 = __VERIFIER_nondet_uchar() [L384] input_197 = __VERIFIER_nondet_uchar() [L385] input_198 = __VERIFIER_nondet_uchar() [L386] input_207 = __VERIFIER_nondet_uchar() [L387] input_208 = __VERIFIER_nondet_uchar() [L388] input_217 = __VERIFIER_nondet_uchar() [L389] input_218 = __VERIFIER_nondet_uchar() [L390] input_232 = __VERIFIER_nondet_uchar() [L391] input_281 = __VERIFIER_nondet_uchar() [L392] input_304 = __VERIFIER_nondet_uchar() [L393] input_305 = __VERIFIER_nondet_uchar() [L394] input_306 = __VERIFIER_nondet_uchar() [L395] input_316 = __VERIFIER_nondet_uchar() [L396] input_317 = __VERIFIER_nondet_uchar() [L397] input_325 = __VERIFIER_nondet_uchar() [L398] input_326 = __VERIFIER_nondet_uchar() [L399] input_333 = __VERIFIER_nondet_uchar() [L400] input_334 = __VERIFIER_nondet_uchar() [L401] input_351 = __VERIFIER_nondet_uchar() [L402] input_352 = __VERIFIER_nondet_uchar() [L403] input_353 = __VERIFIER_nondet_uchar() [L404] input_366 = __VERIFIER_nondet_uchar() [L405] input_415 = __VERIFIER_nondet_uchar() [L406] input_416 = __VERIFIER_nondet_uchar() [L407] input_417 = __VERIFIER_nondet_uchar() [L408] input_439 = __VERIFIER_nondet_uchar() [L409] input_470 = __VERIFIER_nondet_uchar() [L410] input_471 = __VERIFIER_nondet_uchar() [L411] input_472 = __VERIFIER_nondet_uchar() [L412] input_473 = __VERIFIER_nondet_uchar() [L413] input_474 = __VERIFIER_nondet_uchar() [L414] input_475 = __VERIFIER_nondet_uchar() [L415] input_509 = __VERIFIER_nondet_uchar() [L416] input_510 = __VERIFIER_nondet_uchar() [L417] input_511 = __VERIFIER_nondet_uchar() [L418] input_525 = __VERIFIER_nondet_ushort() [L419] input_539 = __VERIFIER_nondet_ushort() [L420] input_540 = __VERIFIER_nondet_ushort() [L421] input_541 = __VERIFIER_nondet_ushort() [L422] input_560 = __VERIFIER_nondet_ushort() [L423] input_579 = __VERIFIER_nondet_uchar() [L424] input_580 = __VERIFIER_nondet_uchar() [L425] input_581 = __VERIFIER_nondet_uchar() [L426] input_582 = __VERIFIER_nondet_uchar() [L427] input_583 = __VERIFIER_nondet_uchar() [L428] input_587 = __VERIFIER_nondet_uchar() [L429] input_605 = __VERIFIER_nondet_uchar() [L430] input_617 = __VERIFIER_nondet_uchar() [L431] input_623 = __VERIFIER_nondet_uchar() [L432] input_636 = __VERIFIER_nondet_uchar() [L433] input_645 = __VERIFIER_nondet_uchar() [L434] input_646 = __VERIFIER_nondet_uchar() [L435] input_659 = __VERIFIER_nondet_uchar() [L436] input_660 = __VERIFIER_nondet_uchar() [L437] input_661 = __VERIFIER_nondet_uchar() [L438] input_675 = __VERIFIER_nondet_uchar() [L439] input_685 = __VERIFIER_nondet_uchar() [L440] input_686 = __VERIFIER_nondet_uchar() [L441] input_687 = __VERIFIER_nondet_uchar() [L442] input_704 = __VERIFIER_nondet_uchar() [L443] input_723 = __VERIFIER_nondet_uchar() [L444] input_724 = __VERIFIER_nondet_uchar() [L445] input_725 = __VERIFIER_nondet_uchar() [L446] input_726 = __VERIFIER_nondet_uchar() [L447] input_727 = __VERIFIER_nondet_uchar() [L448] input_728 = __VERIFIER_nondet_uchar() [L449] input_729 = __VERIFIER_nondet_uchar() [L450] input_730 = __VERIFIER_nondet_uchar() [L451] input_766 = __VERIFIER_nondet_uchar() [L452] input_812 = __VERIFIER_nondet_uchar() [L453] input_813 = __VERIFIER_nondet_uchar() [L454] input_814 = __VERIFIER_nondet_uchar() [L455] input_838 = __VERIFIER_nondet_uchar() [L456] input_846 = __VERIFIER_nondet_uchar() [L457] input_847 = __VERIFIER_nondet_uchar() [L458] input_848 = __VERIFIER_nondet_uchar() [L459] input_849 = __VERIFIER_nondet_uchar() [L460] input_850 = __VERIFIER_nondet_uchar() [L461] input_852 = __VERIFIER_nondet_uchar() [L462] input_866 = __VERIFIER_nondet_uchar() [L463] input_877 = __VERIFIER_nondet_uchar() [L464] input_878 = __VERIFIER_nondet_uchar() [L465] input_879 = __VERIFIER_nondet_uchar() [L466] input_891 = __VERIFIER_nondet_uchar() [L467] input_892 = __VERIFIER_nondet_uchar() [L468] input_893 = __VERIFIER_nondet_uchar() [L469] input_894 = __VERIFIER_nondet_uchar() [L470] input_895 = __VERIFIER_nondet_uchar() [L471] input_896 = __VERIFIER_nondet_uchar() [L472] input_897 = __VERIFIER_nondet_uchar() [L473] input_901 = __VERIFIER_nondet_uchar() [L474] input_909 = __VERIFIER_nondet_uchar() [L475] input_923 = __VERIFIER_nondet_uchar() [L476] input_927 = __VERIFIER_nondet_uchar() [L477] input_943 = __VERIFIER_nondet_uchar() [L478] input_944 = __VERIFIER_nondet_uchar() [L479] input_945 = __VERIFIER_nondet_uchar() [L480] input_946 = __VERIFIER_nondet_uchar() [L481] input_947 = __VERIFIER_nondet_uchar() [L482] input_949 = __VERIFIER_nondet_uchar() [L483] input_964 = __VERIFIER_nondet_uchar() [L484] input_965 = __VERIFIER_nondet_uchar() [L485] input_966 = __VERIFIER_nondet_uchar() [L486] input_976 = __VERIFIER_nondet_uchar() [L487] input_977 = __VERIFIER_nondet_uchar() [L488] input_978 = __VERIFIER_nondet_uchar() [L489] input_992 = __VERIFIER_nondet_uchar() [L490] input_998 = __VERIFIER_nondet_uchar() [L491] input_999 = __VERIFIER_nondet_uchar() [L492] input_1000 = __VERIFIER_nondet_uchar() [L493] input_1010 = __VERIFIER_nondet_uchar() [L494] input_1011 = __VERIFIER_nondet_uchar() [L495] input_1012 = __VERIFIER_nondet_uchar() [L498] SORT_1 var_8_arg_0 = state_5; [L499] EXPR var_8_arg_0 & mask_SORT_1 [L499] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L500] SORT_7 var_8 = var_8_arg_0; [L501] SORT_7 var_10_arg_0 = var_8; [L502] SORT_7 var_10_arg_1 = var_9; [L503] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L504] SORT_1 var_14_arg_0 = state_12; [L505] EXPR var_14_arg_0 & mask_SORT_1 [L505] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L506] SORT_7 var_14 = var_14_arg_0; [L507] SORT_7 var_16_arg_0 = var_14; [L508] SORT_7 var_16_arg_1 = var_15; [L509] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L510] SORT_1 var_17_arg_0 = var_10; [L511] SORT_1 var_17_arg_1 = var_16; [L512] EXPR var_17_arg_0 & var_17_arg_1 [L512] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L513] SORT_1 var_20_arg_0 = var_17; [L514] SORT_1 var_20 = ~var_20_arg_0; [L515] SORT_1 var_21_arg_0 = var_11; [L516] SORT_1 var_21_arg_1 = var_20; [L517] EXPR var_21_arg_0 & var_21_arg_1 [L517] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L518] EXPR var_21 & mask_SORT_1 [L518] var_21 = var_21 & mask_SORT_1 [L519] SORT_1 bad_22_arg_0 = var_21; [L520] CALL __VERIFIER_assert(!(bad_22_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: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 13:52:55,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh --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 fea6ddf5a312efb31106b0b076d25211f4d930aa5997189aee01372ba555a622 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:52:57,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:52:57,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 13:52:57,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:52:57,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:52:57,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:52:57,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:52:57,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:52:57,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:52:57,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:52:57,491 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:52:57,492 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:52:57,493 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:52:57,493 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:52:57,494 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:52:57,494 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:52:57,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:52:57,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:52:57,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:52:57,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:52:57,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:52:57,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:52:57,498 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:52:57,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:52:57,499 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:52:57,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:52:57,500 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:52:57,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:52:57,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:52:57,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:52:57,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:52:57,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:52:57,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:52:57,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:52:57,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:52:57,503 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:52:57,503 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:52:57,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:52:57,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:52:57,504 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:52:57,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:52:57,505 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fea6ddf5a312efb31106b0b076d25211f4d930aa5997189aee01372ba555a622 [2023-12-02 13:52:57,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:52:57,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:52:57,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:52:57,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:52:57,807 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:52:57,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2023-12-02 13:53:00,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:53:00,837 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:53:00,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2023-12-02 13:53:00,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data/850ee4294/da329ebf8ab742f3b52519f82e192234/FLAG9e7a111f1 [2023-12-02 13:53:00,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/data/850ee4294/da329ebf8ab742f3b52519f82e192234 [2023-12-02 13:53:00,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:53:00,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:53:00,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:53:00,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:53:00,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:53:00,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:53:00" (1/1) ... [2023-12-02 13:53:00,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312d1265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:00, skipping insertion in model container [2023-12-02 13:53:00,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:53:00" (1/1) ... [2023-12-02 13:53:00,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:53:01,170 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1244,1257] [2023-12-02 13:53:01,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:53:01,547 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:53:01,560 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_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1244,1257] [2023-12-02 13:53:01,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:53:01,767 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:53:01,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01 WrapperNode [2023-12-02 13:53:01,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:53:01,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:53:01,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:53:01,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:53:01,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:01,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:01,966 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3387 [2023-12-02 13:53:01,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:53:01,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:53:01,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:53:01,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:53:01,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:01,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:01,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:01,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:02,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:02,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:02,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:02,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:02,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:53:02,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:53:02,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:53:02,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:53:02,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (1/1) ... [2023-12-02 13:53:02,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:53:02,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:53:02,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:53:02,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:53:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:53:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:53:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:53:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:53:02,694 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:53:02,696 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:53:07,235 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:53:07,413 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:53:07,413 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:53:07,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:53:07 BoogieIcfgContainer [2023-12-02 13:53:07,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:53:07,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:53:07,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:53:07,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:53:07,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:53:00" (1/3) ... [2023-12-02 13:53:07,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f77ca26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:53:07, skipping insertion in model container [2023-12-02 13:53:07,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:01" (2/3) ... [2023-12-02 13:53:07,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f77ca26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:53:07, skipping insertion in model container [2023-12-02 13:53:07,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:53:07" (3/3) ... [2023-12-02 13:53:07,422 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mpeg.c [2023-12-02 13:53:07,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:53:07,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:53:07,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:53:07,483 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;@2d854ceb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:53:07,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:53:07,486 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) [2023-12-02 13:53:07,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:53:07,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:53:07,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:53:07,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:53:07,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:53:07,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 13:53:07,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:53:07,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488702815] [2023-12-02 13:53:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:07,509 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 [2023-12-02 13:53:07,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:53:07,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:53:07,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:53:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:08,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 13:53:08,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:53:08,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:08,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:53:08,450 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:53:08,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488702815] [2023-12-02 13:53:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488702815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:53:08,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:53:08,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:53:08,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102125561] [2023-12-02 13:53:08,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:53:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:53:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:53:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:53:08,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:53:08,487 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) [2023-12-02 13:53:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:53:09,140 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 13:53:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:53:09,142 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 [2023-12-02 13:53:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:53:09,149 INFO L225 Difference]: With dead ends: 16 [2023-12-02 13:53:09,150 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 13:53:09,152 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 [2023-12-02 13:53:09,156 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:53:09,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 13:53:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 13:53:09,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 13:53:09,183 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) [2023-12-02 13:53:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 13:53:09,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 13:53:09,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:53:09,185 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 13:53:09,185 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) [2023-12-02 13:53:09,186 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 13:53:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 13:53:09,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:53:09,186 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 13:53:09,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:53:09,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:53:09,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:53:09,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:53:09,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 13:53:09,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:53:09,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790981158] [2023-12-02 13:53:09,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:09,396 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 [2023-12-02 13:53:09,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:53:09,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:53:09,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:53:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:19,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 2607 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-02 13:53:19,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:53:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:20,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:53:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:26,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:53:26,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790981158] [2023-12-02 13:53:26,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790981158] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:53:26,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [841556684] [2023-12-02 13:53:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:26,952 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:53:26,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:53:26,974 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:53:26,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 13:53:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:29,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 2607 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-02 13:53:29,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:53:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:30,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:53:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:35,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [841556684] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:53:35,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631072648] [2023-12-02 13:53:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:35,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:53:35,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:53:35,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:53:35,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:53:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:36,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 2607 conjuncts, 88 conjunts are in the unsatisfiable core [2023-12-02 13:53:36,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:53:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:37,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:53:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:53:43,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631072648] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:53:43,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:53:43,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 11 [2023-12-02 13:53:43,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883183921] [2023-12-02 13:53:43,642 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:53:43,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 13:53:43,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:53:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 13:53:43,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-02 13:53:43,645 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2023-12-02 13:53:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:53:44,970 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 13:53:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:53:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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 7 [2023-12-02 13:53:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:53:44,971 INFO L225 Difference]: With dead ends: 14 [2023-12-02 13:53:44,971 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 13:53:44,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-02 13:53:44,973 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:53:44,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 13:53:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 13:53:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-02 13:53:44,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:53:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 13:53:44,978 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-02 13:53:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:53:44,978 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 13:53:44,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2023-12-02 13:53:44,978 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 13:53:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 13:53:44,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:53:44,979 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-02 13:53:44,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 13:53:45,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 13:53:45,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:53:45,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:53:45,580 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:53:45,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:53:45,581 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-02 13:53:45,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:53:45,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130083732] [2023-12-02 13:53:45,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 13:53:45,587 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 [2023-12-02 13:53:45,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:53:45,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:53:45,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c9ab5bb-3dc8-4c95-a9a5-6edf8c83d997/bin/utaipan-verify-nQ1chXbOIh/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 (6)] Waiting until timeout for monitored process [2023-12-02 13:54:26,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 13:54:26,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:54:26,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 5038 conjuncts, 178 conjunts are in the unsatisfiable core [2023-12-02 13:54:26,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:54:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:54:28,215 INFO L327 TraceCheckSpWp]: Computing backward predicates...