./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2 --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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:33:33,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:33:33,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:33:33,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:33:33,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:33:33,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:33:33,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:33:33,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:33:33,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:33:33,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:33:33,936 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:33:33,937 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:33:33,950 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:33:33,955 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:33:33,955 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:33:33,956 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:33:33,956 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:33:33,956 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:33:33,957 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:33:33,957 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:33:33,957 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:33:33,958 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:33:33,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:33:33,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:33:33,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:33:33,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:33:33,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:33:33,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:33:33,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:33:33,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:33:33,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:33:33,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:33:33,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:33:33,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:33:33,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:33:33,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:33:33,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:33:33,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:33:33,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:33:33,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:33:33,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:33:33,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:33:33,968 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:33:33,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:33:33,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:33:33,969 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:33:33,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:33:33,970 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2024-11-02 12:33:34,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:33:34,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:33:34,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:33:34,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:33:34,373 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:33:34,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-benchs/cast_union_loose.c Unable to find full path for "g++" [2024-11-02 12:33:36,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:33:36,842 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:33:36,842 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/sv-benchmarks/c/float-benchs/cast_union_loose.c [2024-11-02 12:33:36,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data/a33707559/8f31f9b7f46340ff8353fc3b79e18e07/FLAG4a1730582 [2024-11-02 12:33:37,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data/a33707559/8f31f9b7f46340ff8353fc3b79e18e07 [2024-11-02 12:33:37,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:33:37,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:33:37,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:33:37,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:33:37,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:33:37,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eab15e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37, skipping insertion in model container [2024-11-02 12:33:37,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:33:37,490 WARN L251 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2024-11-02 12:33:37,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:33:37,531 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:33:37,544 WARN L251 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2024-11-02 12:33:37,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:33:37,574 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:33:37,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37 WrapperNode [2024-11-02 12:33:37,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:33:37,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:33:37,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:33:37,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:33:37,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,619 INFO L138 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-02 12:33:37,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:33:37,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:33:37,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:33:37,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:33:37,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:33:37,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:33:37,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:33:37,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:33:37,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (1/1) ... [2024-11-02 12:33:37,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:33:37,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:33:37,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:33:37,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:33:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:33:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:33:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:33:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-02 12:33:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:33:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:33:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:33:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:33:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:33:37,831 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:33:37,833 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:33:38,066 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-02 12:33:38,070 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:33:38,239 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:33:38,239 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:33:38,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:33:38 BoogieIcfgContainer [2024-11-02 12:33:38,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:33:38,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:33:38,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:33:38,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:33:38,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:33:37" (1/3) ... [2024-11-02 12:33:38,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b6a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:33:38, skipping insertion in model container [2024-11-02 12:33:38,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:37" (2/3) ... [2024-11-02 12:33:38,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b6a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:33:38, skipping insertion in model container [2024-11-02 12:33:38,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:33:38" (3/3) ... [2024-11-02 12:33:38,253 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2024-11-02 12:33:38,278 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:33:38,278 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:33:38,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:33:38,370 INFO L333 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, 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;@22c197c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:33:38,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:33:38,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-11-02 12:33:38,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:33:38,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:33:38,383 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:33:38,384 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:33:38,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:33:38,392 INFO L85 PathProgramCache]: Analyzing trace with hash 86555, now seen corresponding path program 1 times [2024-11-02 12:33:38,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:33:38,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742390137] [2024-11-02 12:33:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:33:38,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:33:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:33:38,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:33:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:33:38,693 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:33:38,696 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:33:38,697 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:33:38,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:33:38,715 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:33:38,756 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:33:38,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:33:38 BoogieIcfgContainer [2024-11-02 12:33:38,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:33:38,770 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:33:38,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:33:38,771 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:33:38,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:33:38" (3/4) ... [2024-11-02 12:33:38,777 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:33:38,779 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:33:38,780 INFO L158 Benchmark]: Toolchain (without parser) took 1571.55ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 63.1MB in the beginning and 75.0MB in the end (delta: -11.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-11-02 12:33:38,781 INFO L158 Benchmark]: CDTParser took 1.57ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:33:38,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.92ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 62.8MB in the beginning and 117.5MB in the end (delta: -54.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-02 12:33:38,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.27ms. Allocated memory is still 157.3MB. Free memory was 117.5MB in the beginning and 115.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:33:38,785 INFO L158 Benchmark]: Boogie Preprocessor took 26.22ms. Allocated memory is still 157.3MB. Free memory was 115.9MB in the beginning and 114.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:33:38,787 INFO L158 Benchmark]: RCFGBuilder took 591.59ms. Allocated memory is still 157.3MB. Free memory was 114.3MB in the beginning and 94.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:33:38,788 INFO L158 Benchmark]: TraceAbstraction took 527.54ms. Allocated memory is still 157.3MB. Free memory was 93.9MB in the beginning and 75.5MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:33:38,790 INFO L158 Benchmark]: Witness Printer took 8.46ms. Allocated memory is still 157.3MB. Free memory was 75.5MB in the beginning and 75.0MB in the end (delta: 519.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:33:38,794 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.92ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 62.8MB in the beginning and 117.5MB in the end (delta: -54.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.27ms. Allocated memory is still 157.3MB. Free memory was 117.5MB in the beginning and 115.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.22ms. Allocated memory is still 157.3MB. Free memory was 115.9MB in the beginning and 114.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 591.59ms. Allocated memory is still 157.3MB. Free memory was 114.3MB in the beginning and 94.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 527.54ms. Allocated memory is still 157.3MB. Free memory was 93.9MB in the beginning and 75.5MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 8.46ms. Allocated memory is still 157.3MB. Free memory was 75.5MB in the beginning and 75.0MB in the end (delta: 519.8kB). 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: 13]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 39. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] EXPR i ^ x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:33:38,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2 --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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:33:41,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:33:41,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:33:41,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:33:41,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:33:41,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:33:41,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:33:41,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:33:41,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:33:41,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:33:41,735 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:33:41,736 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:33:41,736 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:33:41,737 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:33:41,737 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:33:41,737 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:33:41,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:33:41,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:33:41,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:33:41,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:33:41,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:33:41,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:33:41,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:33:41,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:33:41,742 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:33:41,742 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:33:41,743 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:33:41,743 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:33:41,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:33:41,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:33:41,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:33:41,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:33:41,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:33:41,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:33:41,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:33:41,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:33:41,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:33:41,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:33:41,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:33:41,747 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:33:41,748 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:33:41,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:33:41,748 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:33:41,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:33:41,749 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2024-11-02 12:33:42,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:33:42,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:33:42,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:33:42,269 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:33:42,269 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:33:42,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-benchs/cast_union_loose.c Unable to find full path for "g++" [2024-11-02 12:33:44,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:33:44,576 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:33:44,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/sv-benchmarks/c/float-benchs/cast_union_loose.c [2024-11-02 12:33:44,588 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data/579e1bfb1/afe2bf4f9b954d298a8caf6d764a7e42/FLAG1c1df1628 [2024-11-02 12:33:44,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/data/579e1bfb1/afe2bf4f9b954d298a8caf6d764a7e42 [2024-11-02 12:33:44,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:33:44,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:33:44,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:33:44,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:33:44,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:33:44,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:33:44" (1/1) ... [2024-11-02 12:33:44,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29700507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:44, skipping insertion in model container [2024-11-02 12:33:44,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:33:44" (1/1) ... [2024-11-02 12:33:44,924 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:33:45,179 WARN L251 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2024-11-02 12:33:45,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:33:45,222 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:33:45,237 WARN L251 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_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2024-11-02 12:33:45,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:33:45,279 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:33:45,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45 WrapperNode [2024-11-02 12:33:45,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:33:45,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:33:45,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:33:45,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:33:45,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,332 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2024-11-02 12:33:45,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:33:45,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:33:45,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:33:45,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:33:45,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:33:45,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:33:45,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:33:45,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:33:45,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (1/1) ... [2024-11-02 12:33:45,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:33:45,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:33:45,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:33:45,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:33:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:33:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-02 12:33:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:33:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:33:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-02 12:33:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:33:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:33:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:33:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-02 12:33:45,599 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:33:45,604 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:33:45,897 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 12:33:45,897 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:33:45,909 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:33:45,910 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:33:45,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:33:45 BoogieIcfgContainer [2024-11-02 12:33:45,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:33:45,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:33:45,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:33:45,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:33:45,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:33:44" (1/3) ... [2024-11-02 12:33:45,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c5d58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:33:45, skipping insertion in model container [2024-11-02 12:33:45,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:33:45" (2/3) ... [2024-11-02 12:33:45,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c5d58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:33:45, skipping insertion in model container [2024-11-02 12:33:45,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:33:45" (3/3) ... [2024-11-02 12:33:45,922 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2024-11-02 12:33:45,943 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:33:45,943 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:33:46,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:33:46,034 INFO L333 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, 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;@5e52e512, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:33:46,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:33:46,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:33:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:33:46,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:33:46,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:33:46,050 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:33:46,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:33:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2024-11-02 12:33:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:33:46,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307568461] [2024-11-02 12:33:46,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:33:46,079 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 [2024-11-02 12:33:46,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:33:46,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:33:46,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:33:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:33:46,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:33:46,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:33:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:33:46,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:33:46,315 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:33:46,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307568461] [2024-11-02 12:33:46,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307568461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:33:46,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:33:46,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:33:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300676962] [2024-11-02 12:33:46,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:33:46,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:33:46,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:33:46,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:33:46,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:33:46,351 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2024-11-02 12:33:46,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:33:46,363 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-02 12:33:46,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:33:46,366 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 [2024-11-02 12:33:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:33:46,377 INFO L225 Difference]: With dead ends: 21 [2024-11-02 12:33:46,377 INFO L226 Difference]: Without dead ends: 8 [2024-11-02 12:33:46,381 INFO L431 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 [2024-11-02 12:33:46,387 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:33:46,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:33:46,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-02 12:33:46,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-02 12:33:46,427 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) [2024-11-02 12:33:46,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2024-11-02 12:33:46,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2024-11-02 12:33:46,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:33:46,430 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2024-11-02 12:33:46,430 INFO L472 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) [2024-11-02 12:33:46,430 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-11-02 12:33:46,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:33:46,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:33:46,431 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:33:46,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:33:46,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:33:46,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:33:46,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:33:46,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2024-11-02 12:33:46,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:33:46,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895399469] [2024-11-02 12:33:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:33:46,638 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 [2024-11-02 12:33:46,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:33:46,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:33:46,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:33:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:33:46,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:33:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:33:47,094 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-02 12:33:47,095 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:33:47,097 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:33:47,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:33:47,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:33:47,305 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-02 12:33:47,331 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:33:47,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:33:47 BoogieIcfgContainer [2024-11-02 12:33:47,340 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:33:47,341 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:33:47,341 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:33:47,342 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:33:47,342 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:33:45" (3/4) ... [2024-11-02 12:33:47,343 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-02 12:33:47,411 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:33:47,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:33:47,412 INFO L158 Benchmark]: Toolchain (without parser) took 2523.32ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 53.0MB in the beginning and 65.1MB in the end (delta: -12.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-11-02 12:33:47,413 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:33:47,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.58ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 39.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:33:47,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.51ms. Allocated memory is still 77.6MB. Free memory was 39.5MB in the beginning and 37.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:33:47,414 INFO L158 Benchmark]: Boogie Preprocessor took 64.53ms. Allocated memory is still 77.6MB. Free memory was 37.8MB in the beginning and 36.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:33:47,415 INFO L158 Benchmark]: RCFGBuilder took 509.27ms. Allocated memory is still 77.6MB. Free memory was 36.3MB in the beginning and 46.3MB in the end (delta: -9.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:33:47,415 INFO L158 Benchmark]: TraceAbstraction took 1426.60ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 45.7MB in the beginning and 67.2MB in the end (delta: -21.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-11-02 12:33:47,416 INFO L158 Benchmark]: Witness Printer took 69.97ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 65.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:33:47,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.58ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 39.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.51ms. Allocated memory is still 77.6MB. Free memory was 39.5MB in the beginning and 37.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.53ms. Allocated memory is still 77.6MB. Free memory was 37.8MB in the beginning and 36.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.27ms. Allocated memory is still 77.6MB. Free memory was 36.3MB in the beginning and 46.3MB in the end (delta: -9.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1426.60ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 45.7MB in the beginning and 67.2MB in the end (delta: -21.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 69.97ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 65.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\result=NaN] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, 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, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2024-11-02 12:33:47,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b8a14b-1b6e-4f77-bc2e-f5e6b5c2c6a8/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE