./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_alt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_alt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:08,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:08,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:55:08,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:08,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:08,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:08,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:08,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:08,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:08,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:08,965 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:08,967 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:08,968 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:08,970 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:08,971 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:08,971 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:08,972 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:08,972 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:08,973 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:08,974 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:08,974 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:08,975 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:08,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:08,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:08,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:55:08,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:08,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:55:08,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:08,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:08,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:08,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:08,983 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:55:08,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:08,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:08,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:08,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:08,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:08,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:08,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:08,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:08,986 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:08,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:08,988 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:08,989 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:08,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:08,990 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 [2023-11-12 00:55:09,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:09,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:09,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:09,390 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:09,391 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:09,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/float-benchs/filter2_alt.c [2023-11-12 00:55:12,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:12,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:12,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/sv-benchmarks/c/float-benchs/filter2_alt.c [2023-11-12 00:55:12,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data/78772ecf5/076364f3fca348409ff3b9cf9cced958/FLAG44f05f429 [2023-11-12 00:55:12,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data/78772ecf5/076364f3fca348409ff3b9cf9cced958 [2023-11-12 00:55:12,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:12,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:12,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:12,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:12,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:12,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:12,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22290fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12, skipping insertion in model container [2023-11-12 00:55:12,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:12,898 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:13,142 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_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2023-11-12 00:55:13,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:13,189 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:13,210 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_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2023-11-12 00:55:13,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:13,246 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:13,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13 WrapperNode [2023-11-12 00:55:13,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:13,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:13,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:13,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:13,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,303 INFO L138 Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-12 00:55:13,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:13,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:13,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:13,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:13,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:13,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:13,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:13,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:13,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (1/1) ... [2023-11-12 00:55:13,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:13,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:13,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:13,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2023-11-12 00:55:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2023-11-12 00:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 00:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 00:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-12 00:55:13,543 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:13,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:13,753 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:13,848 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:13,848 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:13,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:13 BoogieIcfgContainer [2023-11-12 00:55:13,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:13,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:13,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:13,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:13,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:12" (1/3) ... [2023-11-12 00:55:13,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e35bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:13, skipping insertion in model container [2023-11-12 00:55:13,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:13" (2/3) ... [2023-11-12 00:55:13,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e35bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:13, skipping insertion in model container [2023-11-12 00:55:13,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:13" (3/3) ... [2023-11-12 00:55:13,867 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2023-11-12 00:55:13,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:13,920 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:13,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:13,987 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79d69656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:13,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:13,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:55:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:55:14,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:14,010 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:14,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:14,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:14,020 INFO L85 PathProgramCache]: Analyzing trace with hash -330691237, now seen corresponding path program 1 times [2023-11-12 00:55:14,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:14,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638597777] [2023-11-12 00:55:14,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:55:14,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:14,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638597777] [2023-11-12 00:55:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638597777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:14,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247497934] [2023-11-12 00:55:14,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:14,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:14,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:14,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:14,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:14,477 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:55:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:14,576 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2023-11-12 00:55:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-12 00:55:14,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:14,590 INFO L225 Difference]: With dead ends: 33 [2023-11-12 00:55:14,591 INFO L226 Difference]: Without dead ends: 21 [2023-11-12 00:55:14,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:14,605 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:14,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:55:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-12 00:55:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-11-12 00:55:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 00:55:14,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-12 00:55:14,675 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 13 [2023-11-12 00:55:14,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:14,676 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-12 00:55:14,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:55:14,677 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-12 00:55:14,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:55:14,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:14,680 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:14,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:55:14,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:14,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:14,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1566599106, now seen corresponding path program 1 times [2023-11-12 00:55:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:14,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208959712] [2023-11-12 00:55:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:14,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:14,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:55:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:14,816 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:55:14,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:55:14,819 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:55:14,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:55:14,826 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 00:55:14,831 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:55:14,856 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-12 00:55:14,858 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-12 00:55:14,860 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-12 00:55:14,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:55:14 BoogieIcfgContainer [2023-11-12 00:55:14,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:55:14,876 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:55:14,876 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:55:14,876 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:55:14,877 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:13" (3/4) ... [2023-11-12 00:55:14,879 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:55:14,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:55:14,882 INFO L158 Benchmark]: Toolchain (without parser) took 2030.64ms. Allocated memory is still 165.7MB. Free memory was 121.6MB in the beginning and 104.2MB in the end (delta: 17.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-12 00:55:14,883 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:14,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.47ms. Allocated memory is still 165.7MB. Free memory was 121.6MB in the beginning and 110.6MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:55:14,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.46ms. Allocated memory is still 165.7MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:14,885 INFO L158 Benchmark]: Boogie Preprocessor took 32.73ms. Allocated memory is still 165.7MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 990.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:14,886 INFO L158 Benchmark]: RCFGBuilder took 515.55ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 93.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:55:14,887 INFO L158 Benchmark]: TraceAbstraction took 1016.86ms. Allocated memory is still 165.7MB. Free memory was 93.3MB in the beginning and 105.2MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:14,887 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 165.7MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:14,891 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.47ms. Allocated memory is still 165.7MB. Free memory was 121.6MB in the beginning and 110.6MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.46ms. Allocated memory is still 165.7MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.73ms. Allocated memory is still 165.7MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 990.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.55ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 93.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1016.86ms. Allocated memory is still 165.7MB. Free memory was 93.3MB in the beginning and 105.2MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.68ms. Allocated memory is still 165.7MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float P, X; [L32] static float E[2], S[2]; [L52] CALL, EXPR RANDOM_INPUT() VAL [E={4:0}, INIT=0, P=0, S={5:0}, X=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; [L52] RET, EXPR RANDOM_INPUT() VAL [E={4:0}, INIT=0, P=0, S={5:0}, X=0] [L52] X = RANDOM_INPUT() [L53] INIT = TRUE VAL [E={4:0}, INIT=1, P=0, S={5:0}, X=65] [L54] COND TRUE \read(TRUE) VAL [E={4:0}, INIT=1, P=0, S={5:0}, X=65] [L55] CALL, EXPR RANDOM_INPUT() VAL [E={4:0}, INIT=1, P=0, S={5:0}, X=65] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; [L55] RET, EXPR RANDOM_INPUT() VAL [E={4:0}, INIT=1, P=0, S={5:0}, X=65] [L55] X = RANDOM_INPUT() [L56] CALL filter2 () [L33] COND TRUE \read(INIT) [L34] S[0] = X [L35] P = X [L36] E[0] = X VAL [E={4:0}, INIT=1, P=66, S={5:0}, X=66] [L46] EXPR E[0] [L46] E[1] = E[0] [L46] E[0] = X [L47] EXPR S[0] [L47] S[1] = S[0] [L47] S[0] = P [L56] RET filter2 () [L57] INIT = FALSE VAL [E={4:0}, INIT=0, P=66, S={5:0}, X=66] [L54] COND TRUE \read(TRUE) VAL [E={4:0}, INIT=0, P=66, S={5:0}, X=66] [L55] CALL, EXPR RANDOM_INPUT() VAL [E={4:0}, INIT=0, P=66, S={5:0}, X=66] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; [L55] RET, EXPR RANDOM_INPUT() VAL [E={4:0}, INIT=0, P=66, S={5:0}, X=66] [L55] X = RANDOM_INPUT() [L56] CALL filter2 () [L33] COND FALSE !(\read(INIT)) [L39] EXPR E[0] [L40] EXPR E[1] [L41] EXPR S[0] [L42] EXPR S[1] [L38-L42] P = (((((0.4677826f * X) - (E[0] * 0.7700725f)) + (E[1] * 0.4344376f)) + (S[0] * 1.5419f)) - (S[1] * 0.6740477f)) [L43] CALL __VERIFIER_assert(P >= -15.f && P <= 15.f) [L14] COND TRUE !(cond) VAL [E={4:0}, INIT=0, S={5:0}, X=64, \old(cond)=0, cond=0] [L14] reach_error() VAL [E={4:0}, INIT=0, S={5:0}, X=64, \old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2023-11-12 00:55:14,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_alt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:17,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:18,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:55:18,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:18,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:18,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:18,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:18,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:18,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:18,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:18,113 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:18,114 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:18,115 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:18,116 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:18,117 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:18,118 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:18,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:18,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:18,120 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:55:18,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:55:18,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:18,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:18,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:18,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:18,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:55:18,125 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:55:18,126 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:55:18,127 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:55:18,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:18,128 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:18,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:18,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:55:18,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:18,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:18,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:18,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:18,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:18,132 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:55:18,133 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:55:18,134 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:18,134 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:18,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:18,135 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 [2023-11-12 00:55:18,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:18,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:18,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:18,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:18,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:18,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/float-benchs/filter2_alt.c [2023-11-12 00:55:22,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:22,782 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:22,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/sv-benchmarks/c/float-benchs/filter2_alt.c [2023-11-12 00:55:22,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data/904b5ef18/2151e392929149269849b8389a696e90/FLAGf1b2794af [2023-11-12 00:55:22,820 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/data/904b5ef18/2151e392929149269849b8389a696e90 [2023-11-12 00:55:22,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:22,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:22,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:22,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:22,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:22,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:22" (1/1) ... [2023-11-12 00:55:22,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29535a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:22, skipping insertion in model container [2023-11-12 00:55:22,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:22" (1/1) ... [2023-11-12 00:55:22,878 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:23,112 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_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2023-11-12 00:55:23,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:23,170 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:23,189 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_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2023-11-12 00:55:23,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:23,229 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:23,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23 WrapperNode [2023-11-12 00:55:23,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:23,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:23,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:23,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:23,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,280 INFO L138 Inliner]: procedures = 20, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2023-11-12 00:55:23,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:23,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:23,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:23,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:23,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:23,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:23,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:23,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:23,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (1/1) ... [2023-11-12 00:55:23,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:23,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:23,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:23,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2023-11-12 00:55:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2023-11-12 00:55:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-12 00:55:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:55:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-12 00:55:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-12 00:55:23,539 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:23,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:25,904 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:25,912 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:25,912 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:25,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:25 BoogieIcfgContainer [2023-11-12 00:55:25,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:25,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:25,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:25,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:25,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:22" (1/3) ... [2023-11-12 00:55:25,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff2e1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:25, skipping insertion in model container [2023-11-12 00:55:25,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:23" (2/3) ... [2023-11-12 00:55:25,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff2e1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:25, skipping insertion in model container [2023-11-12 00:55:25,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:25" (3/3) ... [2023-11-12 00:55:25,955 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2023-11-12 00:55:25,998 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:25,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:26,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:26,096 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ff30811, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:26,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:55:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:55:26,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:26,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:26,117 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:26,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash -254494899, now seen corresponding path program 1 times [2023-11-12 00:55:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:55:26,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429747201] [2023-11-12 00:55:26,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:26,153 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 [2023-11-12 00:55:26,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:55:26,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:55:26,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:55:26,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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 139 [2023-11-12 00:55:26,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:55:26,553 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 37 more [2023-11-12 00:55:26,563 INFO L158 Benchmark]: Toolchain (without parser) took 3728.55ms. Allocated memory is still 109.1MB. Free memory was 85.0MB in the beginning and 76.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-11-12 00:55:26,564 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:26,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.18ms. Allocated memory is still 109.1MB. Free memory was 84.7MB in the beginning and 73.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:55:26,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.20ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:26,568 INFO L158 Benchmark]: Boogie Preprocessor took 45.21ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:55:26,569 INFO L158 Benchmark]: RCFGBuilder took 2587.59ms. Allocated memory is still 109.1MB. Free memory was 69.6MB in the beginning and 56.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:55:26,574 INFO L158 Benchmark]: TraceAbstraction took 612.91ms. Allocated memory is still 109.1MB. Free memory was 87.7MB in the beginning and 76.2MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:55:26,579 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.18ms. Allocated memory is still 109.1MB. Free memory was 84.7MB in the beginning and 73.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.20ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.21ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2587.59ms. Allocated memory is still 109.1MB. Free memory was 69.6MB in the beginning and 56.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 612.91ms. Allocated memory is still 109.1MB. Free memory was 87.7MB in the beginning and 76.2MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-12 00:55:26,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ab9e4-9a1f-4703-9629-8b97ee6fb2e5/bin/utaipan-verify-NcY6lQBIFX/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) with exit command (exit)) Received EOF on stdin. No stderr output.