./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:33:24,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:33:24,301 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 23:33:24,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:33:24,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:33:24,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:33:24,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:33:24,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:33:24,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:33:24,330 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:33:24,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:33:24,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:33:24,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:33:24,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:33:24,333 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:33:24,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:33:24,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:33:24,334 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:33:24,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:33:24,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:33:24,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:33:24,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:33:24,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:33:24,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:33:24,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:33:24,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:33:24,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:33:24,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:33:24,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:33:24,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:33:24,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:33:24,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:33:24,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:33:24,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:33:24,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:33:24,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:33:24,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:33:24,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:33:24,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:33:24,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:33:24,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:33:24,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:33:24,342 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 [2023-11-28 23:33:24,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:33:24,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:33:24,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:33:24,588 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:33:24,589 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:33:24,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2023-11-28 23:33:27,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:33:27,470 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:33:27,471 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/sv-benchmarks/c/float-benchs/zonotope_tight.c [2023-11-28 23:33:27,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data/28744cc0c/8210bab457004f83bd1f76cce6c779ec/FLAGb5767ff95 [2023-11-28 23:33:27,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data/28744cc0c/8210bab457004f83bd1f76cce6c779ec [2023-11-28 23:33:27,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:33:27,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:33:27,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:33:27,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:33:27,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:33:27,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f85f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27, skipping insertion in model container [2023-11-28 23:33:27,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:33:27,661 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_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2023-11-28 23:33:27,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:33:27,682 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:33:27,695 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_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2023-11-28 23:33:27,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:33:27,712 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:33:27,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27 WrapperNode [2023-11-28 23:33:27,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:33:27,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:33:27,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:33:27,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:33:27,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,745 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-28 23:33:27,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:33:27,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:33:27,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:33:27,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:33:27,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,770 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:33:27,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:33:27,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:33:27,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:33:27,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:33:27,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (1/1) ... [2023-11-28 23:33:27,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:33:27,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:27,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:33:27,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:33:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:33:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:33:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:33:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:33:27,918 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:33:27,920 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:33:28,003 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:33:28,027 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:33:28,027 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 23:33:28,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:28 BoogieIcfgContainer [2023-11-28 23:33:28,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:33:28,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:33:28,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:33:28,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:33:28,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:33:27" (1/3) ... [2023-11-28 23:33:28,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039d295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:33:28, skipping insertion in model container [2023-11-28 23:33:28,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:27" (2/3) ... [2023-11-28 23:33:28,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039d295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:33:28, skipping insertion in model container [2023-11-28 23:33:28,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:28" (3/3) ... [2023-11-28 23:33:28,037 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2023-11-28 23:33:28,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:33:28,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:33:28,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:33:28,108 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=PETRI_NET, 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;@47b3c57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:33:28,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:33:28,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:33:28,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:28,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:28,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:33:28,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:28,123 INFO L85 PathProgramCache]: Analyzing trace with hash 229987977, now seen corresponding path program 1 times [2023-11-28 23:33:28,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:28,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389783485] [2023-11-28 23:33:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:28,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:33:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:33:28,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:33:28,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389783485] [2023-11-28 23:33:28,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389783485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:33:28,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:33:28,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:33:28,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567010126] [2023-11-28 23:33:28,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:33:28,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:33:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:33:28,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:33:28,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:33:28,304 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:28,322 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-28 23:33:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:33:28,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 [2023-11-28 23:33:28,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:28,330 INFO L225 Difference]: With dead ends: 18 [2023-11-28 23:33:28,330 INFO L226 Difference]: Without dead ends: 8 [2023-11-28 23:33:28,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:33:28,335 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:28,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:33:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-28 23:33:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-28 23:33:28,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-28 23:33:28,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2023-11-28 23:33:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:28,358 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-28 23:33:28,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-28 23:33:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:33:28,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:28,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:28,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:33:28,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:33:28,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash 287246279, now seen corresponding path program 1 times [2023-11-28 23:33:28,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:33:28,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019454632] [2023-11-28 23:33:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:33:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:33:28,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:33:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:33:28,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:33:28,405 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 23:33:28,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 23:33:28,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:33:28,410 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 23:33:28,412 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:33:28,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:33:28 BoogieIcfgContainer [2023-11-28 23:33:28,425 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:33:28,426 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:33:28,426 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:33:28,426 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:33:28,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:28" (3/4) ... [2023-11-28 23:33:28,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:33:28,430 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:33:28,430 INFO L158 Benchmark]: Toolchain (without parser) took 936.61ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 86.2MB in the end (delta: 5.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-28 23:33:28,431 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:33:28,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.08ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 81.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:33:28,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.24ms. Allocated memory is still 127.9MB. Free memory was 81.3MB in the beginning and 79.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:33:28,433 INFO L158 Benchmark]: Boogie Preprocessor took 33.82ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:33:28,433 INFO L158 Benchmark]: RCFGBuilder took 247.11ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 68.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:33:28,434 INFO L158 Benchmark]: TraceAbstraction took 395.07ms. Allocated memory is still 127.9MB. Free memory was 67.9MB in the beginning and 86.7MB in the end (delta: -18.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:33:28,434 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 127.9MB. Free memory was 86.7MB in the beginning and 86.2MB in the end (delta: 524.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:33:28,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.08ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 81.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.24ms. Allocated memory is still 127.9MB. Free memory was 81.3MB in the beginning and 79.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.82ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 247.11ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 68.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 395.07ms. Allocated memory is still 127.9MB. Free memory was 67.9MB in the beginning and 86.7MB in the end (delta: -18.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 127.9MB. Free memory was 86.7MB in the beginning and 86.2MB in the end (delta: 524.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: 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 someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 4.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-28 23:33:28,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:33:30,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:33:30,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-28 23:33:30,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:33:30,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:33:30,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:33:30,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:33:30,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:33:30,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:33:30,480 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:33:30,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:33:30,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:33:30,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:33:30,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:33:30,483 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:33:30,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:33:30,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:33:30,485 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:33:30,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:33:30,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:33:30,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:33:30,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:33:30,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:33:30,487 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:33:30,488 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:33:30,488 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:33:30,489 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:33:30,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:33:30,489 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:33:30,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:33:30,490 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:33:30,490 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:33:30,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:33:30,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:33:30,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:33:30,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:33:30,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:33:30,492 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:33:30,492 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:33:30,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:33:30,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:33:30,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:33:30,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:33:30,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:33:30,493 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:33:30,494 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 [2023-11-28 23:33:30,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:33:30,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:33:30,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:33:30,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:33:30,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:33:30,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2023-11-28 23:33:33,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:33:33,772 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:33:33,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/sv-benchmarks/c/float-benchs/zonotope_tight.c [2023-11-28 23:33:33,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data/044b259d9/498876136b99451eae102283c55c51e0/FLAG3c8c05769 [2023-11-28 23:33:33,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/data/044b259d9/498876136b99451eae102283c55c51e0 [2023-11-28 23:33:33,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:33:33,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:33:33,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:33:33,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:33:33,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:33:33,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:33,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb96020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33, skipping insertion in model container [2023-11-28 23:33:33,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:33,821 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:33:33,947 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_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2023-11-28 23:33:33,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:33:33,970 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:33:33,982 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2023-11-28 23:33:33,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:33:33,999 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:33:34,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33 WrapperNode [2023-11-28 23:33:34,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:33:34,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:33:34,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:33:34,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:33:34,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,031 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2023-11-28 23:33:34,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:33:34,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:33:34,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:33:34,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:33:34,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,058 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:33:34,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:33:34,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:33:34,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:33:34,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:33:34,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (1/1) ... [2023-11-28 23:33:34,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:33:34,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:33:34,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:33:34,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:33:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:33:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 23:33:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:33:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:33:34,218 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:33:34,220 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:33:41,485 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:33:41,516 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:33:41,516 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 23:33:41,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:41 BoogieIcfgContainer [2023-11-28 23:33:41,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:33:41,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:33:41,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:33:41,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:33:41,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:33:33" (1/3) ... [2023-11-28 23:33:41,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70350114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:33:41, skipping insertion in model container [2023-11-28 23:33:41,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33" (2/3) ... [2023-11-28 23:33:41,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70350114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:33:41, skipping insertion in model container [2023-11-28 23:33:41,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:41" (3/3) ... [2023-11-28 23:33:41,526 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2023-11-28 23:33:41,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:33:41,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:33:41,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:33:41,591 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=PETRI_NET, 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;@17c3c2b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:33:41,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:33:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:41,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:33:41,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:41,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:41,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:33:41,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:41,605 INFO L85 PathProgramCache]: Analyzing trace with hash 229987977, now seen corresponding path program 1 times [2023-11-28 23:33:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:33:41,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907111559] [2023-11-28 23:33:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:41,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:33:41,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:33:41,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 23:33:41,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-28 23:33:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:33:42,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:33:42,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:33:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:33:42,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:33:42,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:33:42,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907111559] [2023-11-28 23:33:42,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907111559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:33:42,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:33:42,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:33:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214802014] [2023-11-28 23:33:42,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:33:42,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:33:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:33:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:33:42,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:33:42,076 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:33:42,099 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-28 23:33:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:33:42,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 [2023-11-28 23:33:42,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:33:42,106 INFO L225 Difference]: With dead ends: 18 [2023-11-28 23:33:42,107 INFO L226 Difference]: Without dead ends: 8 [2023-11-28 23:33:42,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:33:42,112 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:33:42,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:33:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-28 23:33:42,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-28 23:33:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-28 23:33:42,141 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2023-11-28 23:33:42,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:33:42,142 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-28 23:33:42,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:33:42,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-28 23:33:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:33:42,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:33:42,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:33:42,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:33:42,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:33:42,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:33:42,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:33:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 287246279, now seen corresponding path program 1 times [2023-11-28 23:33:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:33:42,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887179929] [2023-11-28 23:33:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:33:42,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:33:42,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:33:42,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 23:33:42,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-28 23:33:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:33:42,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:33:42,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:33:52,992 WARN L293 SmtUtils]: Spent 6.22s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:34:20,005 WARN L293 SmtUtils]: Spent 14.43s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:34:34,398 WARN L293 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:34:43,507 WARN L293 SmtUtils]: Spent 7.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:34:53,163 WARN L293 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:35:01,739 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:35:09,284 WARN L293 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:35:13,526 WARN L854 $PredicateComparison]: unable to prove that (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) is different from false [2023-11-28 23:35:24,788 WARN L293 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:35:33,345 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:35:49,182 WARN L293 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:35:57,754 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:36:01,992 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))))) is different from false [2023-11-28 23:36:06,070 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))))) is different from true [2023-11-28 23:36:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:36:06,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:36:06,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:36:06,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887179929] [2023-11-28 23:36:06,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887179929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:36:06,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:36:06,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:36:06,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615283401] [2023-11-28 23:36:06,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:36:06,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:36:06,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:36:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:36:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=12, Unknown=5, NotChecked=14, Total=42 [2023-11-28 23:36:06,075 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:36:10,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:36:14,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:36:22,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:36:25,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 23:36:57,547 WARN L293 SmtUtils]: Spent 24.83s on a formula simplification. DAG size of input: 15 DAG size of output: 18 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:37:01,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 23:37:03,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:37:05,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:37:10,127 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse0) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse1) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (= |c_ULTIMATE.start_main_~y~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| .cse0)) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-11-28 23:37:11,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:37:15,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:37:17,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:37:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:37:17,844 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-28 23:37:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:37:17,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 [2023-11-28 23:37:17,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:37:17,846 INFO L225 Difference]: With dead ends: 12 [2023-11-28 23:37:17,846 INFO L226 Difference]: Without dead ends: 8 [2023-11-28 23:37:17,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 80.6s TimeCoverageRelationStatistics Valid=21, Invalid=25, Unknown=8, NotChecked=36, Total=90 [2023-11-28 23:37:17,848 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:37:17,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 3 Unknown, 22 Unchecked, 30.8s Time] [2023-11-28 23:37:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-28 23:37:17,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-28 23:37:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-11-28 23:37:17,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2023-11-28 23:37:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:37:17,851 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-11-28 23:37:17,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-28 23:37:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:37:17,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:37:17,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:37:17,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:37:18,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:37:18,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:37:18,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash 287305861, now seen corresponding path program 1 times [2023-11-28 23:37:18,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:37:18,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307665192] [2023-11-28 23:37:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:37:18,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:37:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:37:18,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 23:37:18,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/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 (4)] Waiting until timeout for monitored process [2023-11-28 23:37:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:18,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 23:37:18,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:33,271 WARN L293 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:37:46,254 WARN L293 SmtUtils]: Spent 12.26s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:37:54,431 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:38:09,749 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:38:13,808 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= |c_ULTIMATE.start_main_~y~0#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-11-28 23:38:39,035 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:38:47,193 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:38:59,416 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:39:07,594 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:39:15,802 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:39:24,032 WARN L293 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:39:28,118 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|) .cse0) (_ +zero 11 53))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven .cse2 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))))) is different from false [2023-11-28 23:39:44,647 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:39:52,806 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:40:03,854 WARN L293 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:40:16,415 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:40:24,605 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:40:28,687 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|) .cse0) (_ +zero 11 53))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven .cse2 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) is different from false [2023-11-28 23:40:32,719 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|) .cse0) (_ +zero 11 53))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven .cse2 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) is different from true [2023-11-28 23:40:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:40:32,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:40:32,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:40:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307665192] [2023-11-28 23:40:32,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307665192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:40:32,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:40:32,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:40:32,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328954847] [2023-11-28 23:40:32,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:40:32,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:40:32,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:40:32,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:40:32,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=14, Unknown=4, NotChecked=24, Total=56 [2023-11-28 23:40:32,723 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:40:35,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 23:40:38,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 23:40:42,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 23:40:46,365 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse1 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= |c_ULTIMATE.start_main_~y~0#1| (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-11-28 23:40:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:40:46,375 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2023-11-28 23:40:46,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:40:46,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 [2023-11-28 23:40:46,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:40:46,376 INFO L225 Difference]: With dead ends: 8 [2023-11-28 23:40:46,376 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 23:40:46,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.9s TimeCoverageRelationStatistics Valid=20, Invalid=21, Unknown=5, NotChecked=44, Total=90 [2023-11-28 23:40:46,377 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:40:46,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 23 Unchecked, 9.2s Time] [2023-11-28 23:40:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 23:40:46,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 23:40:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:40:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 23:40:46,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2023-11-28 23:40:46,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:40:46,385 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:40:46,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:40:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 23:40:46,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 23:40:46,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 23:40:46,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/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 (4)] Ended with exit code 0 [2023-11-28 23:40:46,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:40:46,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2023-11-28 23:40:46,593 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-28 23:40:46,594 INFO L899 garLoopResultBuilder]: For program point L14-3(line 14) no Hoare annotation was computed. [2023-11-28 23:40:46,596 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-28 23:40:46,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:40:46,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:40:46 BoogieIcfgContainer [2023-11-28 23:40:46,601 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:40:46,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:40:46,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:40:46,602 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:40:46,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:41" (3/4) ... [2023-11-28 23:40:46,603 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 23:40:46,609 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-28 23:40:46,609 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-28 23:40:46,609 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 23:40:46,609 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 23:40:46,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 23:40:46,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 23:40:46,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:40:46,682 INFO L158 Benchmark]: Toolchain (without parser) took 432885.36ms. Allocated memory is still 104.9MB. Free memory was 82.2MB in the beginning and 76.8MB in the end (delta: 5.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2023-11-28 23:40:46,682 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:40:46,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.25ms. Allocated memory is still 104.9MB. Free memory was 82.0MB in the beginning and 71.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:40:46,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.57ms. Allocated memory is still 104.9MB. Free memory was 71.2MB in the beginning and 69.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:40:46,684 INFO L158 Benchmark]: Boogie Preprocessor took 44.04ms. Allocated memory is still 104.9MB. Free memory was 69.7MB in the beginning and 67.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:40:46,684 INFO L158 Benchmark]: RCFGBuilder took 7439.93ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 84.3MB in the end (delta: -16.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-28 23:40:46,685 INFO L158 Benchmark]: TraceAbstraction took 425081.47ms. Allocated memory is still 104.9MB. Free memory was 83.8MB in the beginning and 81.8MB in the end (delta: 2.1MB). Peak memory consumption was 911.0kB. Max. memory is 16.1GB. [2023-11-28 23:40:46,685 INFO L158 Benchmark]: Witness Printer took 80.14ms. Allocated memory is still 104.9MB. Free memory was 81.0MB in the beginning and 76.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 23:40:46,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.25ms. Allocated memory is still 104.9MB. Free memory was 82.0MB in the beginning and 71.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.57ms. Allocated memory is still 104.9MB. Free memory was 71.2MB in the beginning and 69.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.04ms. Allocated memory is still 104.9MB. Free memory was 69.7MB in the beginning and 67.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7439.93ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 84.3MB in the end (delta: -16.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 425081.47ms. Allocated memory is still 104.9MB. Free memory was 83.8MB in the beginning and 81.8MB in the end (delta: 2.1MB). Peak memory consumption was 911.0kB. Max. memory is 16.1GB. * Witness Printer took 80.14ms. Allocated memory is still 104.9MB. Free memory was 81.0MB in the beginning and 76.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 425.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 85.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 40.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 39.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 45 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 114.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 337.6s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 6 QuantifiedInterpolants, 392 SizeOfPredicates, 14 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-28 23:40:46,908 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-11-28 23:40:46,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca19777f-1cf4-421c-9bc3-b1eea2e57ab2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE