./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --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 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:27:10,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:27:10,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:27:10,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:27:10,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:27:10,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:27:10,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:27:10,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:27:10,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:27:10,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:27:10,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:27:10,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:27:10,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:27:10,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:27:10,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:27:10,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:27:10,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:27:10,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:27:10,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:27:10,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:27:10,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:27:10,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:27:10,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:27:10,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:27:10,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:27:10,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:27:10,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:27:10,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:27:10,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:27:10,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:27:10,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:27:10,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:27:10,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:27:10,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:27:10,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:27:10,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:27:10,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:27:10,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:27:10,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:27:10,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:27:10,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:27:10,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:27:10,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:27:10,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:27:10,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:27:10,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:27:10,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:27:10,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:27:10,431 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:27:10,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:27:10,432 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:27:10,432 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:27:10,432 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:27:10,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:27:10,432 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:27:10,432 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:27:10,433 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:27:10,433 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:27:10,433 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:27:10,433 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:27:10,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:27:10,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:27:10,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:27:10,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:27:10,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:27:10,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:27:10,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:27:10,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:27:10,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:27:10,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:27:10,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:27:10,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:27:10,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:27:10,436 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:27:10,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:27:10,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:27:10,436 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:27:10,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:27:10,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:27:10,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:27:10,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a [2022-12-14 12:27:10,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:27:10,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:27:10,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:27:10,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:27:10,660 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:27:10,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-12-14 12:27:13,206 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:27:13,416 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:27:13,417 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-12-14 12:27:13,427 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data/829689f5c/a84aa2e6fe7d4758b4cac9edfd0fbd44/FLAGd473337ef [2022-12-14 12:27:13,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data/829689f5c/a84aa2e6fe7d4758b4cac9edfd0fbd44 [2022-12-14 12:27:13,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:27:13,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:27:13,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:27:13,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:27:13,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:27:13,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:27:13" (1/1) ... [2022-12-14 12:27:13,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a462465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:13, skipping insertion in model container [2022-12-14 12:27:13,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:27:13" (1/1) ... [2022-12-14 12:27:13,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:27:13,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:27:13,666 WARN L237 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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-12-14 12:27:13,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:27:13,906 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:27:13,917 WARN L237 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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-12-14 12:27:14,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:27:14,044 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:27:14,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14 WrapperNode [2022-12-14 12:27:14,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:27:14,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:27:14,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:27:14,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:27:14,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,174 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1754 [2022-12-14 12:27:14,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:27:14,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:27:14,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:27:14,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:27:14,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,275 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:27:14,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:27:14,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:27:14,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:27:14,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (1/1) ... [2022-12-14 12:27:14,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:27:14,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:27:14,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:27:14,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:27:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:27:14,633 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:27:14,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:29:37,049 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:29:37,078 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:29:37,078 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:29:37,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:37 BoogieIcfgContainer [2022-12-14 12:29:37,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:29:37,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:29:37,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:29:37,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:29:37,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:27:13" (1/3) ... [2022-12-14 12:29:37,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af7a030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:29:37, skipping insertion in model container [2022-12-14 12:29:37,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:27:14" (2/3) ... [2022-12-14 12:29:37,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af7a030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:29:37, skipping insertion in model container [2022-12-14 12:29:37,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:37" (3/3) ... [2022-12-14 12:29:37,089 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-12-14 12:29:37,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:29:37,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:29:37,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:29:37,158 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=LoopsAndPotentialCycles, 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;@22761db5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:29:37,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:29:37,161 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) [2022-12-14 12:29:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 12:29:37,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:37,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 12:29:37,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:37,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 12:29:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:37,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908921302] [2022-12-14 12:29:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:29:37,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:29:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:29:37,498 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:29:37,500 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:29:37,501 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 12:29:37,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:29:37,505 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 12:29:37,508 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:29:37,522 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 12:29:37,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:29:37 BoogieIcfgContainer [2022-12-14 12:29:37,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:29:37,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:29:37,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:29:37,529 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:29:37,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:37" (3/4) ... [2022-12-14 12:29:37,532 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:29:37,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:29:37,533 INFO L158 Benchmark]: Toolchain (without parser) took 144092.23ms. Allocated memory was 180.4MB in the beginning and 654.3MB in the end (delta: 474.0MB). Free memory was 135.9MB in the beginning and 451.7MB in the end (delta: -315.8MB). Peak memory consumption was 160.4MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,533 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:29:37,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.30ms. Allocated memory is still 180.4MB. Free memory was 135.9MB in the beginning and 78.5MB in the end (delta: 57.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.20ms. Allocated memory is still 180.4MB. Free memory was 78.5MB in the beginning and 129.8MB in the end (delta: -51.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,534 INFO L158 Benchmark]: Boogie Preprocessor took 121.36ms. Allocated memory is still 180.4MB. Free memory was 129.8MB in the beginning and 119.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,535 INFO L158 Benchmark]: RCFGBuilder took 142784.12ms. Allocated memory was 180.4MB in the beginning and 654.3MB in the end (delta: 474.0MB). Free memory was 119.3MB in the beginning and 514.6MB in the end (delta: -395.3MB). Peak memory consumption was 393.1MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,535 INFO L158 Benchmark]: TraceAbstraction took 445.43ms. Allocated memory is still 654.3MB. Free memory was 514.6MB in the beginning and 452.8MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,535 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 654.3MB. Free memory was 452.8MB in the beginning and 451.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:29:37,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.30ms. Allocated memory is still 180.4MB. Free memory was 135.9MB in the beginning and 78.5MB in the end (delta: 57.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.20ms. Allocated memory is still 180.4MB. Free memory was 78.5MB in the beginning and 129.8MB in the end (delta: -51.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.36ms. Allocated memory is still 180.4MB. Free memory was 129.8MB in the beginning and 119.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 142784.12ms. Allocated memory was 180.4MB in the beginning and 654.3MB in the end (delta: 474.0MB). Free memory was 119.3MB in the beginning and 514.6MB in the end (delta: -395.3MB). Peak memory consumption was 393.1MB. Max. memory is 16.1GB. * TraceAbstraction took 445.43ms. Allocated memory is still 654.3MB. Free memory was 514.6MB in the beginning and 452.8MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 654.3MB. Free memory was 452.8MB in the beginning and 451.7MB in the end (delta: 1.1MB). 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 203, overapproximation of bitwiseOr at line 198, overapproximation of bitwiseAnd at line 145. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 12); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (12 - 1); [L28] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 1); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (1 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 4); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (4 - 1); [L34] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 32); [L35] const SORT_37 msb_SORT_37 = (SORT_37)1 << (32 - 1); [L37] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 3); [L38] const SORT_41 msb_SORT_41 = (SORT_41)1 << (3 - 1); [L40] const SORT_289 mask_SORT_289 = (SORT_289)-1 >> (sizeof(SORT_289) * 8 - 2); [L41] const SORT_289 msb_SORT_289 = (SORT_289)1 << (2 - 1); [L43] const SORT_293 mask_SORT_293 = (SORT_293)-1 >> (sizeof(SORT_293) * 8 - 5); [L44] const SORT_293 msb_SORT_293 = (SORT_293)1 << (5 - 1); [L46] const SORT_295 mask_SORT_295 = (SORT_295)-1 >> (sizeof(SORT_295) * 8 - 6); [L47] const SORT_295 msb_SORT_295 = (SORT_295)1 << (6 - 1); [L49] const SORT_297 mask_SORT_297 = (SORT_297)-1 >> (sizeof(SORT_297) * 8 - 7); [L50] const SORT_297 msb_SORT_297 = (SORT_297)1 << (7 - 1); [L52] const SORT_299 mask_SORT_299 = (SORT_299)-1 >> (sizeof(SORT_299) * 8 - 8); [L53] const SORT_299 msb_SORT_299 = (SORT_299)1 << (8 - 1); [L55] const SORT_301 mask_SORT_301 = (SORT_301)-1 >> (sizeof(SORT_301) * 8 - 9); [L56] const SORT_301 msb_SORT_301 = (SORT_301)1 << (9 - 1); [L58] const SORT_303 mask_SORT_303 = (SORT_303)-1 >> (sizeof(SORT_303) * 8 - 10); [L59] const SORT_303 msb_SORT_303 = (SORT_303)1 << (10 - 1); [L61] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 11); [L62] const SORT_305 msb_SORT_305 = (SORT_305)1 << (11 - 1); [L64] const SORT_1 var_16 = 0; [L65] const SORT_6 var_21 = 0; [L66] const SORT_37 var_39 = 0; [L67] const SORT_41 var_42 = 0; [L68] const SORT_41 var_45 = 6; [L69] const SORT_41 var_47 = 7; [L70] const SORT_6 var_53 = 1; [L71] const SORT_11 var_57 = 2; [L72] const SORT_11 var_62 = 9; [L73] const SORT_11 var_70 = 15; [L74] const SORT_11 var_75 = 1; [L75] const SORT_11 var_77 = 3; [L76] const SORT_11 var_80 = 5; [L77] const SORT_11 var_83 = 7; [L78] const SORT_11 var_86 = 11; [L79] const SORT_11 var_108 = 8; [L80] const SORT_11 var_112 = 10; [L81] const SORT_11 var_116 = 13; [L82] const SORT_11 var_127 = 4; [L83] const SORT_11 var_129 = 12; [L84] const SORT_11 var_132 = 14; [L85] const SORT_11 var_138 = 6; [L86] const SORT_11 var_165 = 0; [L87] const SORT_41 var_209 = 1; [L88] const SORT_41 var_211 = 5; [L89] const SORT_1 var_229 = 4095; [L90] const SORT_1 var_569 = 1; [L91] const SORT_305 var_577 = 0; [L93] SORT_1 input_2; [L94] SORT_1 input_3; [L95] SORT_1 input_4; [L96] SORT_1 input_5; [L97] SORT_6 input_7; [L98] SORT_6 input_8; [L99] SORT_6 input_9; [L100] SORT_1 input_10; [L101] SORT_11 input_12; [L102] SORT_6 input_13; [L103] SORT_6 input_14; [L104] SORT_6 input_15; [L105] SORT_1 input_216; [L106] SORT_41 input_219; [L108] SORT_1 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L109] SORT_1 state_19 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L110] SORT_1 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L111] SORT_1 state_25 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L112] SORT_1 state_29 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L113] SORT_1 state_31 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L114] SORT_41 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_41; [L115] SORT_1 state_59 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L116] SORT_1 state_125 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L118] SORT_1 init_18_arg_1 = var_16; [L119] state_17 = init_18_arg_1 [L120] SORT_1 init_20_arg_1 = var_16; [L121] state_19 = init_20_arg_1 [L122] SORT_1 init_24_arg_1 = var_16; [L123] state_23 = init_24_arg_1 [L124] SORT_1 init_26_arg_1 = var_16; [L125] state_25 = init_26_arg_1 [L126] SORT_1 init_30_arg_1 = var_16; [L127] state_29 = init_30_arg_1 [L128] SORT_1 init_32_arg_1 = var_16; [L129] state_31 = init_32_arg_1 [L130] SORT_41 init_44_arg_1 = var_42; [L131] state_43 = init_44_arg_1 [L132] SORT_1 init_60_arg_1 = var_16; [L133] state_59 = init_60_arg_1 [L134] SORT_1 init_126_arg_1 = var_16; [L135] state_125 = init_126_arg_1 VAL [init_126_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_44_arg_1=0, init_60_arg_1=0, mask_SORT_1=4095, mask_SORT_11=15, mask_SORT_289=3, mask_SORT_293=31, mask_SORT_295=63, mask_SORT_297=127, mask_SORT_299=255, mask_SORT_301=511, mask_SORT_303=1023, mask_SORT_305=2047, mask_SORT_37=4294967295, mask_SORT_41=7, mask_SORT_6=1, msb_SORT_1=2048, msb_SORT_11=8, msb_SORT_289=2, msb_SORT_293=16, msb_SORT_295=32, msb_SORT_297=64, msb_SORT_299=128, msb_SORT_301=256, msb_SORT_303=512, msb_SORT_305=1024, msb_SORT_37=2147483648, msb_SORT_41=4, msb_SORT_6=1, state_125=0, state_17=0, state_19=0, state_23=0, state_25=0, state_29=0, state_31=0, state_43=0, state_59=0, var_108=8, var_112=10, var_116=13, var_127=4, var_129=12, var_132=14, var_138=6, var_16=0, var_165=0, var_209=1, var_21=0, var_211=5, var_229=4095, var_39=0, var_42=0, var_45=6, var_47=7, var_53=1, var_569=1, var_57=2, var_577=0, var_62=9, var_70=15, var_75=1, var_77=3, var_80=5, var_83=7, var_86=11] [L138] input_2 = __VERIFIER_nondet_ushort() [L139] input_3 = __VERIFIER_nondet_ushort() [L140] input_4 = __VERIFIER_nondet_ushort() [L141] input_5 = __VERIFIER_nondet_ushort() [L142] input_7 = __VERIFIER_nondet_uchar() [L143] input_8 = __VERIFIER_nondet_uchar() [L144] input_9 = __VERIFIER_nondet_uchar() [L145] input_9 = input_9 & mask_SORT_6 [L146] input_10 = __VERIFIER_nondet_ushort() [L147] input_12 = __VERIFIER_nondet_uchar() [L148] input_12 = input_12 & mask_SORT_11 [L149] input_13 = __VERIFIER_nondet_uchar() [L150] input_14 = __VERIFIER_nondet_uchar() [L151] input_15 = __VERIFIER_nondet_uchar() [L152] input_216 = __VERIFIER_nondet_ushort() [L153] input_219 = __VERIFIER_nondet_uchar() [L156] SORT_6 var_34_arg_0 = var_21; [L157] SORT_1 var_34_arg_1 = input_5; [L158] SORT_1 var_34_arg_2 = input_4; [L159] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L160] SORT_6 var_33_arg_0 = var_21; [L161] SORT_1 var_33_arg_1 = state_31; [L162] SORT_1 var_33_arg_2 = state_29; [L163] SORT_1 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L164] SORT_6 var_35_arg_0 = var_21; [L165] SORT_1 var_35_arg_1 = var_34; [L166] SORT_1 var_35_arg_2 = var_33; [L167] SORT_1 var_35 = var_35_arg_0 ? var_35_arg_1 : var_35_arg_2; [L168] SORT_6 var_27_arg_0 = var_21; [L169] SORT_1 var_27_arg_1 = state_25; [L170] SORT_1 var_27_arg_2 = state_23; [L171] SORT_1 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L172] SORT_6 var_22_arg_0 = var_21; [L173] SORT_1 var_22_arg_1 = state_19; [L174] SORT_1 var_22_arg_2 = state_17; [L175] SORT_1 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L176] SORT_6 var_28_arg_0 = var_21; [L177] SORT_1 var_28_arg_1 = var_27; [L178] SORT_1 var_28_arg_2 = var_22; [L179] SORT_1 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L180] SORT_6 var_36_arg_0 = var_21; [L181] SORT_1 var_36_arg_1 = var_35; [L182] SORT_1 var_36_arg_2 = var_28; [L183] SORT_1 var_36 = var_36_arg_0 ? var_36_arg_1 : var_36_arg_2; [L184] SORT_1 var_38_arg_0 = var_36; [L185] var_38_arg_0 = var_38_arg_0 & mask_SORT_1 [L186] SORT_37 var_38 = var_38_arg_0; [L187] SORT_37 var_40_arg_0 = var_38; [L188] SORT_37 var_40_arg_1 = var_39; [L189] SORT_6 var_40 = var_40_arg_0 == var_40_arg_1; [L190] SORT_41 var_46_arg_0 = state_43; [L191] SORT_41 var_46_arg_1 = var_45; [L192] SORT_6 var_46 = var_46_arg_0 != var_46_arg_1; [L193] SORT_41 var_48_arg_0 = state_43; [L194] SORT_41 var_48_arg_1 = var_47; [L195] SORT_6 var_48 = var_48_arg_0 != var_48_arg_1; [L196] SORT_6 var_49_arg_0 = var_46; [L197] SORT_6 var_49_arg_1 = var_48; [L198] SORT_6 var_49 = var_49_arg_0 | var_49_arg_1; [L199] SORT_6 var_50_arg_0 = var_40; [L200] SORT_6 var_50_arg_1 = var_49; [L201] SORT_6 var_50 = var_50_arg_0 & var_50_arg_1; [L202] SORT_6 var_54_arg_0 = var_50; [L203] SORT_6 var_54 = ~var_54_arg_0; [L204] SORT_6 var_55_arg_0 = var_53; [L205] SORT_6 var_55_arg_1 = var_54; [L206] SORT_6 var_55 = var_55_arg_0 & var_55_arg_1; [L207] var_55 = var_55 & mask_SORT_6 [L208] SORT_6 bad_56_arg_0 = var_55; [L209] CALL __VERIFIER_assert(!(bad_56_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] 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: 0.4s, 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, 0.1s 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 [2022-12-14 12:29:37,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --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 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:29:39,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:29:39,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:29:39,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:29:39,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:29:39,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:29:39,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:29:39,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:29:39,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:29:39,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:29:39,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:29:39,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:29:39,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:29:39,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:29:39,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:29:39,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:29:39,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:29:39,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:29:39,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:29:39,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:29:39,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:29:39,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:29:39,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:29:39,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:29:39,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:29:39,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:29:39,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:29:39,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:29:39,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:29:39,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:29:39,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:29:39,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:29:39,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:29:39,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:29:39,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:29:39,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:29:39,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:29:39,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:29:39,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:29:39,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:29:39,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:29:39,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 12:29:39,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:29:39,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:29:39,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:29:39,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:29:39,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:29:39,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:29:39,102 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:29:39,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:29:39,102 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:29:39,103 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:29:39,103 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:29:39,103 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:29:39,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:29:39,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:29:39,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:29:39,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:29:39,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 12:29:39,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:29:39,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:29:39,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:29:39,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:29:39,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:29:39,106 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 12:29:39,106 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 12:29:39,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:29:39,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:29:39,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 12:29:39,106 INFO L138 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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a [2022-12-14 12:29:39,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:29:39,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:29:39,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:29:39,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:29:39,328 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:29:39,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-12-14 12:29:41,849 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:29:42,050 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:29:42,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-12-14 12:29:42,061 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data/acea3ce00/88daad3bb9a2440681e810b6d54be4fb/FLAGc996f3656 [2022-12-14 12:29:42,399 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/data/acea3ce00/88daad3bb9a2440681e810b6d54be4fb [2022-12-14 12:29:42,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:29:42,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:29:42,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:29:42,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:29:42,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:29:42,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8ba34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42, skipping insertion in model container [2022-12-14 12:29:42,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:29:42,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:29:42,588 WARN L237 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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-12-14 12:29:42,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:29:42,804 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:29:42,812 WARN L237 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_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-12-14 12:29:42,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:29:42,895 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:29:42,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42 WrapperNode [2022-12-14 12:29:42,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:29:42,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:29:42,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:29:42,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:29:42,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,979 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1754 [2022-12-14 12:29:42,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:29:42,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:29:42,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:29:42,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:29:42,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:42,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:43,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:43,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:43,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:43,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:43,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:29:43,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:29:43,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:29:43,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:29:43,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (1/1) ... [2022-12-14 12:29:43,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:29:43,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:29:43,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:29:43,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:29:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:29:43,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:29:43,441 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:29:43,442 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:29:45,300 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:29:45,307 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:29:45,307 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:29:45,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:45 BoogieIcfgContainer [2022-12-14 12:29:45,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:29:45,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:29:45,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:29:45,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:29:45,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:29:42" (1/3) ... [2022-12-14 12:29:45,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c53a445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:29:45, skipping insertion in model container [2022-12-14 12:29:45,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:29:42" (2/3) ... [2022-12-14 12:29:45,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c53a445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:29:45, skipping insertion in model container [2022-12-14 12:29:45,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:29:45" (3/3) ... [2022-12-14 12:29:45,317 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-12-14 12:29:45,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:29:45,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:29:45,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:29:45,380 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=LoopsAndPotentialCycles, 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;@128c97e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:29:45,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:29:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:29:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:29:45,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:45,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:29:45,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:45,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 12:29:45,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:29:45,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018866100] [2022-12-14 12:29:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:45,401 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 [2022-12-14 12:29:45,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:29:45,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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) [2022-12-14 12:29:45,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:29:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:45,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-14 12:29:45,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:29:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:45,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:29:45,885 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 12:29:45,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018866100] [2022-12-14 12:29:45,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018866100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:45,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:45,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:29:45,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853808020] [2022-12-14 12:29:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:45,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:29:45,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 12:29:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:29:45,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:29:45,916 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:29:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:46,212 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 12:29:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:29:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:29:46,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:46,218 INFO L225 Difference]: With dead ends: 20 [2022-12-14 12:29:46,218 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 12:29:46,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:29:46,222 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:46,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:29:46,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 12:29:46,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 12:29:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:29:46,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 12:29:46,243 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 12:29:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:46,243 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 12:29:46,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:29:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 12:29:46,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 12:29:46,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:46,244 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 12:29:46,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:29:46,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:29:46,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 12:29:46,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:29:46,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90138816] [2022-12-14 12:29:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:46,457 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 [2022-12-14 12:29:46,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:29:46,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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) [2022-12-14 12:29:46,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f1fa5e-4240-48f0-a1c7-3bfb2e115809/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:29:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:47,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 235 conjunts are in the unsatisfiable core [2022-12-14 12:29:47,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:29:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:29:49,175 INFO L328 TraceCheckSpWp]: Computing backward predicates...