./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje --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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:37:04,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:37:04,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:37:04,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:37:04,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:37:04,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:37:04,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:37:04,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:37:04,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:37:04,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:37:04,946 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:37:04,946 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:37:04,947 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:37:04,947 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:37:04,948 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:37:04,948 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:37:04,949 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:37:04,949 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:37:04,950 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:37:04,951 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:37:04,951 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:37:04,952 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:37:04,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:37:04,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:37:04,954 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:37:04,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:37:04,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:37:04,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:37:04,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:37:04,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:37:04,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:37:04,957 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:37:04,958 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:37:04,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:37:04,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:37:04,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:37:04,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:37:04,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:37:04,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:37:04,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:37:04,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:37:04,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:37:04,963 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:37:04,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:37:04,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:37:04,964 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:37:04,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:37:04,965 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2024-11-09 05:37:05,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:37:05,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:37:05,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:37:05,365 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:37:05,366 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:37:05,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c Unable to find full path for "g++" [2024-11-09 05:37:07,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:37:07,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:37:07,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2024-11-09 05:37:07,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data/d387d5cec/92523c11a07a4de5a555245496cbbc65/FLAGc555cbbf4 [2024-11-09 05:37:08,079 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data/d387d5cec/92523c11a07a4de5a555245496cbbc65 [2024-11-09 05:37:08,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:37:08,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:37:08,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:37:08,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:37:08,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:37:08,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b25a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08, skipping insertion in model container [2024-11-09 05:37:08,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:37:08,341 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-09 05:37:08,348 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-09 05:37:08,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:37:08,418 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:37:08,433 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-09 05:37:08,435 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-09 05:37:08,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:37:08,488 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:37:08,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08 WrapperNode [2024-11-09 05:37:08,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:37:08,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:37:08,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:37:08,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:37:08,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,533 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-09 05:37:08,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:37:08,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:37:08,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:37:08,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:37:08,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:37:08,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:37:08,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:37:08,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:37:08,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (1/1) ... [2024-11-09 05:37:08,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:37:08,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:08,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:37:08,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:37:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:37:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-09 05:37:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-09 05:37:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:37:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:37:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:37:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:37:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:37:08,842 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:37:08,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:37:09,406 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-09 05:37:09,406 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:37:09,697 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:37:09,699 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:37:09,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:37:09 BoogieIcfgContainer [2024-11-09 05:37:09,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:37:09,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:37:09,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:37:09,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:37:09,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:37:08" (1/3) ... [2024-11-09 05:37:09,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d795946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:37:09, skipping insertion in model container [2024-11-09 05:37:09,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:08" (2/3) ... [2024-11-09 05:37:09,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d795946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:37:09, skipping insertion in model container [2024-11-09 05:37:09,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:37:09" (3/3) ... [2024-11-09 05:37:09,716 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2024-11-09 05:37:09,736 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:37:09,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:37:09,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:37:09,804 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;@702a52f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:37:09,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:37:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:37:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:37:09,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:09,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:37:09,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:09,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:09,821 INFO L85 PathProgramCache]: Analyzing trace with hash 9615155, now seen corresponding path program 1 times [2024-11-09 05:37:09,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:09,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465611269] [2024-11-09 05:37:09,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:09,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:37:09,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:37:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:37:09,972 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:37:09,975 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:37:09,976 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-09 05:37:09,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-09 05:37:09,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:37:09,985 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:37:10,001 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:37:10,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:37:10 BoogieIcfgContainer [2024-11-09 05:37:10,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:37:10,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:37:10,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:37:10,010 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:37:10,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:37:09" (3/4) ... [2024-11-09 05:37:10,014 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:37:10,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:37:10,017 INFO L158 Benchmark]: Toolchain (without parser) took 1933.58ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 94.1MB in the beginning and 100.7MB in the end (delta: -6.6MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-09 05:37:10,018 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:37:10,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.90ms. Allocated memory is still 144.7MB. Free memory was 94.1MB in the beginning and 77.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:37:10,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.56ms. Allocated memory is still 144.7MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:37:10,022 INFO L158 Benchmark]: Boogie Preprocessor took 39.71ms. Allocated memory is still 144.7MB. Free memory was 75.6MB in the beginning and 73.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:37:10,023 INFO L158 Benchmark]: RCFGBuilder took 1125.86ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 73.9MB in the beginning and 115.3MB in the end (delta: -41.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-11-09 05:37:10,024 INFO L158 Benchmark]: TraceAbstraction took 303.88ms. Allocated memory is still 188.7MB. Free memory was 114.4MB in the beginning and 100.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:37:10,024 INFO L158 Benchmark]: Witness Printer took 6.17ms. Allocated memory is still 188.7MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:37:10,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.90ms. Allocated memory is still 144.7MB. Free memory was 94.1MB in the beginning and 77.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.56ms. Allocated memory is still 144.7MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.71ms. Allocated memory is still 144.7MB. Free memory was 75.6MB in the beginning and 73.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1125.86ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 73.9MB in the beginning and 115.3MB in the end (delta: -41.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 303.88ms. Allocated memory is still 188.7MB. Free memory was 114.4MB in the beginning and 100.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 6.17ms. Allocated memory is still 188.7MB. Free memory is still 100.7MB. 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: 48]: 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=45occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:37:10,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje --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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:37:12,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:37:13,091 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:37:13,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:37:13,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:37:13,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:37:13,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:37:13,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:37:13,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:37:13,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:37:13,151 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:37:13,151 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:37:13,152 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:37:13,152 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:37:13,154 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:37:13,155 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:37:13,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:37:13,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:37:13,160 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:37:13,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:37:13,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:37:13,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:37:13,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:37:13,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:37:13,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:37:13,167 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:37:13,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:37:13,167 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:37:13,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:37:13,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:37:13,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:37:13,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:37:13,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:37:13,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:37:13,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:37:13,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:37:13,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:37:13,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:37:13,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:37:13,176 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:37:13,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:37:13,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:37:13,179 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:37:13,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2024-11-09 05:37:13,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:37:13,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:37:13,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:37:13,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:37:13,687 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:37:13,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c Unable to find full path for "g++" [2024-11-09 05:37:15,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:37:16,171 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:37:16,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2024-11-09 05:37:16,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data/3dcbdba9c/10ec3dc1ef064420b08d16aa6f46363f/FLAG4f3e0cdea [2024-11-09 05:37:16,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/data/3dcbdba9c/10ec3dc1ef064420b08d16aa6f46363f [2024-11-09 05:37:16,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:37:16,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:37:16,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:37:16,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:37:16,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:37:16,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:37:16" (1/1) ... [2024-11-09 05:37:16,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6487d07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:16, skipping insertion in model container [2024-11-09 05:37:16,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:37:16" (1/1) ... [2024-11-09 05:37:16,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:37:16,839 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-09 05:37:16,847 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-09 05:37:16,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:37:16,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:37:16,962 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-09 05:37:16,964 WARN L250 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_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-09 05:37:16,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:37:17,024 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:37:17,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17 WrapperNode [2024-11-09 05:37:17,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:37:17,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:37:17,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:37:17,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:37:17,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,087 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-11-09 05:37:17,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:37:17,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:37:17,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:37:17,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:37:17,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:37:17,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:37:17,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:37:17,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:37:17,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (1/1) ... [2024-11-09 05:37:17,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:37:17,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:17,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:37:17,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:37:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:37:17,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:37:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-09 05:37:17,270 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-09 05:37:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:37:17,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:37:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:37:17,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:37:17,375 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:37:17,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:37:20,054 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-09 05:37:20,054 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:37:20,074 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:37:20,074 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:37:20,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:37:20 BoogieIcfgContainer [2024-11-09 05:37:20,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:37:20,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:37:20,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:37:20,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:37:20,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:37:16" (1/3) ... [2024-11-09 05:37:20,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1883f99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:37:20, skipping insertion in model container [2024-11-09 05:37:20,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:37:17" (2/3) ... [2024-11-09 05:37:20,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1883f99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:37:20, skipping insertion in model container [2024-11-09 05:37:20,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:37:20" (3/3) ... [2024-11-09 05:37:20,087 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2024-11-09 05:37:20,108 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:37:20,108 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:37:20,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:37:20,190 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;@420bd990, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:37:20,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:37:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:37:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:37:20,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:20,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:20,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:20,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1912677092, now seen corresponding path program 1 times [2024-11-09 05:37:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:37:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494205887] [2024-11-09 05:37:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:20,253 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 [2024-11-09 05:37:20,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:37:20,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:37:20,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:37:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:20,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:37:20,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:37:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:37:20,904 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:37:20,905 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:37:20,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494205887] [2024-11-09 05:37:20,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494205887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:20,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:37:20,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:37:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397039478] [2024-11-09 05:37:20,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:20,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:37:20,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:37:20,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:37:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:37:20,944 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2024-11-09 05:37:20,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:20,980 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2024-11-09 05:37:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:37:20,983 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 [2024-11-09 05:37:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:20,994 INFO L225 Difference]: With dead ends: 117 [2024-11-09 05:37:20,994 INFO L226 Difference]: Without dead ends: 52 [2024-11-09 05:37:20,998 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 [2024-11-09 05:37:21,003 INFO L432 NwaCegarLoop]: 82 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, 82 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 [2024-11-09 05:37:21,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:37:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-09 05:37:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-09 05:37:21,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:37:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-11-09 05:37:21,058 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2024-11-09 05:37:21,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:21,059 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-11-09 05:37:21,059 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) [2024-11-09 05:37:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2024-11-09 05:37:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:37:21,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:21,061 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:21,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:37:21,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:37:21,269 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:21,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:21,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1912736674, now seen corresponding path program 1 times [2024-11-09 05:37:21,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:37:21,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005470205] [2024-11-09 05:37:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:21,275 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 [2024-11-09 05:37:21,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:37:21,279 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:37:21,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:37:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:37:33,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:37:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:37:35,762 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:37:35,763 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:37:35,765 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-09 05:37:35,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-09 05:37:35,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:37:35,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:37:35,975 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 05:37:35,990 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:37:35,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:37:35 BoogieIcfgContainer [2024-11-09 05:37:35,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:37:35,994 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:37:35,994 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:37:35,994 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:37:35,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:37:20" (3/4) ... [2024-11-09 05:37:35,995 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:37:36,026 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:37:36,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:37:36,027 INFO L158 Benchmark]: Toolchain (without parser) took 19557.38ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 58.2MB in the beginning and 61.9MB in the end (delta: -3.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,027 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 143.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.07ms. Allocated memory is still 81.8MB. Free memory was 57.9MB in the beginning and 40.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.32ms. Allocated memory is still 81.8MB. Free memory was 40.8MB in the beginning and 39.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,029 INFO L158 Benchmark]: Boogie Preprocessor took 72.21ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 60.8MB in the end (delta: -21.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,029 INFO L158 Benchmark]: RCFGBuilder took 2912.72ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 42.3MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,030 INFO L158 Benchmark]: TraceAbstraction took 15914.95ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 41.6MB in the beginning and 63.4MB in the end (delta: -21.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:37:36,030 INFO L158 Benchmark]: Witness Printer took 32.22ms. Allocated memory is still 104.9MB. Free memory was 63.4MB in the beginning and 61.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:37:36,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 143.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.07ms. Allocated memory is still 81.8MB. Free memory was 57.9MB in the beginning and 40.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.32ms. Allocated memory is still 81.8MB. Free memory was 40.8MB in the beginning and 39.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.21ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 60.8MB in the end (delta: -21.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * RCFGBuilder took 2912.72ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 42.3MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15914.95ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 41.6MB in the beginning and 63.4MB in the end (delta: -21.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 32.22ms. Allocated memory is still 104.9MB. Free memory was 63.4MB in the beginning and 61.9MB in the end (delta: 1.6MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [result=1.398437261581421] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 15.8s, 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, 82 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, 82 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=61occurred 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, 12.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 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! [2024-11-09 05:37:36,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1efb4a8a-a0ed-4805-bd3c-39d6c45f8a71/bin/utaipan-verify-YMUCfTKeje/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE