./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 527bcce2
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_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a61b450591d297bb54a7e2b017ddcc535583283602376cf67569cff0251cefee
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 20:59:35,431 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-21 20:59:35,576 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-21 20:59:35,590 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 20:59:35,591 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 20:59:35,637 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 20:59:35,638 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 20:59:35,639 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 20:59:35,641 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 20:59:35,647 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-21 20:59:35,648 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 20:59:35,648 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 20:59:35,649 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 20:59:35,651 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-21 20:59:35,652 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-21 20:59:35,653 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 20:59:35,653 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-21 20:59:35,654 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-21 20:59:35,654 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-21 20:59:35,655 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-21 20:59:35,655 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-21 20:59:35,656 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 20:59:35,657 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 20:59:35,657 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 20:59:35,658 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-21 20:59:35,658 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-21 20:59:35,659 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-21 20:59:35,660 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 20:59:35,660 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-21 20:59:35,661 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 20:59:35,662 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-21 20:59:35,663 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 20:59:35,663 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 20:59:35,663 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 20:59:35,664 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 20:59:35,664 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-21 20:59:35,664 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-21 20:59:35,665 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 20:59:35,665 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 20:59:35,665 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 20:59:35,666 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 20:59:35,666 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 20:59:35,666 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/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_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a61b450591d297bb54a7e2b017ddcc535583283602376cf67569cff0251cefee
[2023-11-21 20:59:36,020 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 20:59:36,065 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 20:59:36,069 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 20:59:36,070 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-21 20:59:36,071 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-21 20:59:36,073 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i
[2023-11-21 20:59:39,475 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-21 20:59:39,932 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-21 20:59:39,933 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i
[2023-11-21 20:59:39,959 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data/7ef30b359/59a5efb2479c4c86bffee9ea274a2b9c/FLAG9fee84260
[2023-11-21 20:59:39,980 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data/7ef30b359/59a5efb2479c4c86bffee9ea274a2b9c
[2023-11-21 20:59:39,986 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 20:59:39,989 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 20:59:39,992 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 20:59:39,993 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 20:59:39,999 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 20:59:40,000 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:39" (1/1) ...
[2023-11-21 20:59:40,002 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5961e7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40, skipping insertion in model container
[2023-11-21 20:59:40,002 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:39" (1/1) ...
[2023-11-21 20:59:40,113 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-21 20:59:40,436 WARN  L635        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-21 20:59:41,200 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i[63006,63019]
[2023-11-21 20:59:41,205 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-21 20:59:41,222 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-21 20:59:41,261 WARN  L635        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-21 20:59:41,308 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i[63006,63019]
[2023-11-21 20:59:41,309 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-21 20:59:41,444 WARN  L675               CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-21 20:59:41,453 INFO  L206         MainTranslator]: Completed translation
[2023-11-21 20:59:41,454 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41 WrapperNode
[2023-11-21 20:59:41,454 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 20:59:41,456 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 20:59:41,456 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 20:59:41,456 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 20:59:41,465 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,489 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,517 INFO  L138                Inliner]: procedures = 558, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28
[2023-11-21 20:59:41,518 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 20:59:41,519 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 20:59:41,519 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 20:59:41,519 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 20:59:41,532 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,532 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,535 INFO  L184        PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,546 INFO  L187           HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7]
[2023-11-21 20:59:41,547 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,547 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,552 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,554 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,556 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,557 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,559 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 20:59:41,561 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 20:59:41,561 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 20:59:41,561 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-21 20:59:41,562 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (1/1) ...
[2023-11-21 20:59:41,569 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 20:59:41,584 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 20:59:41,600 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 20:59:41,621 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 20:59:41,648 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 20:59:41,648 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 20:59:41,649 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 20:59:41,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-21 20:59:41,651 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-21 20:59:41,837 INFO  L240             CfgBuilder]: Building ICFG
[2023-11-21 20:59:41,840 INFO  L266             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 20:59:41,971 INFO  L281             CfgBuilder]: Performing block encoding
[2023-11-21 20:59:42,046 INFO  L303             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 20:59:42,046 INFO  L308             CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-21 20:59:42,048 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:42 BoogieIcfgContainer
[2023-11-21 20:59:42,048 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 20:59:42,051 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 20:59:42,051 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 20:59:42,055 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-21 20:59:42,056 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:39" (1/3) ...
[2023-11-21 20:59:42,057 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475c237b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:42, skipping insertion in model container
[2023-11-21 20:59:42,057 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:41" (2/3) ...
[2023-11-21 20:59:42,058 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475c237b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:42, skipping insertion in model container
[2023-11-21 20:59:42,059 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:42" (3/3) ...
[2023-11-21 20:59:42,060 INFO  L112   eAbstractionObserver]: Analyzing ICFG erf_5_safe.c-amalgamation.i
[2023-11-21 20:59:42,082 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 20:59:42,082 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-21 20:59:42,137 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 20:59:42,145 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a481aa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 20:59:42,146 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-21 20:59:42,151 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)
[2023-11-21 20:59:42,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-21 20:59:42,158 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-21 20:59:42,159 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-21 20:59:42,159 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 20:59:42,166 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 20:59:42,166 INFO  L85        PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times
[2023-11-21 20:59:42,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 20:59:42,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259021323]
[2023-11-21 20:59:42,180 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 20:59:42,180 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 20:59:42,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-21 20:59:42,294 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-21 20:59:42,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-21 20:59:42,346 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-21 20:59:42,348 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-21 20:59:42,350 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-21 20:59:42,353 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-21 20:59:42,358 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2023-11-21 20:59:42,363 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-21 20:59:42,378 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:59:42 BoogieIcfgContainer
[2023-11-21 20:59:42,378 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-21 20:59:42,379 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-21 20:59:42,380 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-21 20:59:42,380 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-21 20:59:42,381 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:42" (3/4) ...
[2023-11-21 20:59:42,383 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2023-11-21 20:59:42,385 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-21 20:59:42,386 INFO  L158              Benchmark]: Toolchain (without parser) took 2397.72ms. Allocated memory is still 157.3MB. Free memory was 109.1MB in the beginning and 122.3MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 20:59:42,387 INFO  L158              Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 20:59:42,388 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1462.48ms. Allocated memory is still 157.3MB. Free memory was 108.8MB in the beginning and 95.1MB in the end (delta: 13.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB.
[2023-11-21 20:59:42,389 INFO  L158              Benchmark]: Boogie Procedure Inliner took 62.61ms. Allocated memory is still 157.3MB. Free memory was 95.1MB in the beginning and 92.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 20:59:42,390 INFO  L158              Benchmark]: Boogie Preprocessor took 40.72ms. Allocated memory is still 157.3MB. Free memory was 92.5MB in the beginning and 91.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 20:59:42,390 INFO  L158              Benchmark]: RCFGBuilder took 487.79ms. Allocated memory is still 157.3MB. Free memory was 91.0MB in the beginning and 79.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-21 20:59:42,391 INFO  L158              Benchmark]: TraceAbstraction took 327.34ms. Allocated memory is still 157.3MB. Free memory was 79.5MB in the beginning and 122.3MB in the end (delta: -42.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB.
[2023-11-21 20:59:42,392 INFO  L158              Benchmark]: Witness Printer took 5.85ms. Allocated memory is still 157.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 20:59:42,396 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 113.2MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1462.48ms. Allocated memory is still 157.3MB. Free memory was 108.8MB in the beginning and 95.1MB in the end (delta: 13.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 62.61ms. Allocated memory is still 157.3MB. Free memory was 95.1MB in the beginning and 92.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 40.72ms. Allocated memory is still 157.3MB. Free memory was 92.5MB in the beginning and 91.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 487.79ms. Allocated memory is still 157.3MB. Free memory was 91.0MB in the beginning and 79.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 327.34ms. Allocated memory is still 157.3MB. Free memory was 79.5MB in the beginning and 122.3MB in the end (delta: -42.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB.
 * Witness Printer took 5.85ms. Allocated memory is still 157.3MB. Free memory is still 122.3MB. 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: 851]: 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 851, overapproximation of someUnaryFLOAToperation at line 850. 
Possible FailurePath: 
[L847]              float x = __VERIFIER_nondet_float();
[L848]  COND FALSE  !(!(__builtin_isgreaterequal(x, 0.0f)))
[L849]              float y = erff(x);
[L850]              float z = -erff(-x);
[L851]  COND TRUE   !(y == z)
[L851]              reach_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 6 locations, 1 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=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, 0.0s 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
[2023-11-21 20:59:42,435 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a61b450591d297bb54a7e2b017ddcc535583283602376cf67569cff0251cefee
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 20:59:45,597 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-21 20:59:45,752 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-11-21 20:59:45,761 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 20:59:45,763 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 20:59:45,814 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 20:59:45,815 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 20:59:45,815 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 20:59:45,817 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 20:59:45,823 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-21 20:59:45,824 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 20:59:45,824 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 20:59:45,825 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 20:59:45,828 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-21 20:59:45,828 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-21 20:59:45,829 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 20:59:45,830 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-21 20:59:45,830 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-21 20:59:45,831 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-21 20:59:45,832 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-21 20:59:45,833 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 20:59:45,834 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 20:59:45,834 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 20:59:45,835 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-11-21 20:59:45,835 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-11-21 20:59:45,836 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-21 20:59:45,836 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-21 20:59:45,837 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-21 20:59:45,837 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-21 20:59:45,838 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 20:59:45,840 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-21 20:59:45,840 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 20:59:45,841 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-21 20:59:45,841 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 20:59:45,841 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 20:59:45,842 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 20:59:45,843 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 20:59:45,844 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-11-21 20:59:45,844 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-21 20:59:45,845 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 20:59:45,845 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 20:59:45,845 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 20:59:45,846 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 20:59:45,846 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 20:59:45,847 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-11-21 20:59:45,847 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/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_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a61b450591d297bb54a7e2b017ddcc535583283602376cf67569cff0251cefee
[2023-11-21 20:59:46,403 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 20:59:46,442 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 20:59:46,445 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 20:59:46,447 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-21 20:59:46,448 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-21 20:59:46,451 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i
[2023-11-21 20:59:49,963 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-21 20:59:50,432 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-21 20:59:50,434 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i
[2023-11-21 20:59:50,469 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data/4969aa703/f0ded0fe21864bf8ab9ef2a3604c83cb/FLAG9480e06c3
[2023-11-21 20:59:50,498 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/data/4969aa703/f0ded0fe21864bf8ab9ef2a3604c83cb
[2023-11-21 20:59:50,505 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 20:59:50,506 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 20:59:50,511 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 20:59:50,512 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 20:59:50,519 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 20:59:50,520 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:50" (1/1) ...
[2023-11-21 20:59:50,521 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6597dbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50, skipping insertion in model container
[2023-11-21 20:59:50,521 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:50" (1/1) ...
[2023-11-21 20:59:50,612 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-21 20:59:50,951 WARN  L635        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-21 20:59:51,573 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i[63006,63019]
[2023-11-21 20:59:51,577 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-21 20:59:51,596 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-21 20:59:51,642 WARN  L635        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-21 20:59:51,671 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/sv-benchmarks/c/neural-networks/erf_5_safe.c-amalgamation.i[63006,63019]
[2023-11-21 20:59:51,672 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-21 20:59:51,809 WARN  L675               CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-21 20:59:51,817 INFO  L206         MainTranslator]: Completed translation
[2023-11-21 20:59:51,818 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51 WrapperNode
[2023-11-21 20:59:51,818 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 20:59:51,819 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 20:59:51,819 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 20:59:51,820 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 20:59:51,829 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,859 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,887 INFO  L138                Inliner]: procedures = 559, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29
[2023-11-21 20:59:51,887 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 20:59:51,888 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 20:59:51,888 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 20:59:51,889 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 20:59:51,902 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,902 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,905 INFO  L184        PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,916 INFO  L187           HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7]
[2023-11-21 20:59:51,916 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,917 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,925 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,927 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,930 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,931 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,935 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 20:59:51,936 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 20:59:51,937 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 20:59:51,937 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-21 20:59:51,938 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ...
[2023-11-21 20:59:51,945 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 20:59:51,958 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 20:59:51,972 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 20:59:51,993 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 20:59:52,014 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-11-21 20:59:52,017 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2023-11-21 20:59:52,018 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 20:59:52,018 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 20:59:52,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 20:59:52,171 INFO  L240             CfgBuilder]: Building ICFG
[2023-11-21 20:59:52,174 INFO  L266             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 20:59:52,348 INFO  L281             CfgBuilder]: Performing block encoding
[2023-11-21 20:59:52,488 INFO  L303             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 20:59:52,488 INFO  L308             CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-21 20:59:52,490 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52 BoogieIcfgContainer
[2023-11-21 20:59:52,490 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 20:59:52,493 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 20:59:52,493 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 20:59:52,497 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-21 20:59:52,498 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:50" (1/3) ...
[2023-11-21 20:59:52,506 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e3e981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:52, skipping insertion in model container
[2023-11-21 20:59:52,507 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (2/3) ...
[2023-11-21 20:59:52,509 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e3e981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:52, skipping insertion in model container
[2023-11-21 20:59:52,510 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52" (3/3) ...
[2023-11-21 20:59:52,512 INFO  L112   eAbstractionObserver]: Analyzing ICFG erf_5_safe.c-amalgamation.i
[2023-11-21 20:59:52,540 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 20:59:52,540 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-21 20:59:52,612 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 20:59:52,620 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f4591d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 20:59:52,621 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-21 20:59:52,626 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)
[2023-11-21 20:59:52,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-21 20:59:52,634 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-21 20:59:52,635 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-21 20:59:52,636 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 20:59:52,645 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 20:59:52,646 INFO  L85        PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times
[2023-11-21 20:59:52,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 20:59:52,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407587374]
[2023-11-21 20:59:52,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 20:59:52,665 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 20:59:52,666 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 20:59:52,670 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 20:59:52,720 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-21 20:59:52,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-21 20:59:52,808 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-21 20:59:52,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-21 20:59:52,855 INFO  L130   FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-21 20:59:52,857 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-21 20:59:52,859 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-21 20:59:52,874 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-21 20:59:53,064 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 20:59:53,070 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2023-11-21 20:59:53,074 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-21 20:59:53,099 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:59:53 BoogieIcfgContainer
[2023-11-21 20:59:53,099 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-21 20:59:53,100 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-21 20:59:53,100 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-21 20:59:53,100 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-21 20:59:53,100 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52" (3/4) ...
[2023-11-21 20:59:53,102 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2023-11-21 20:59:53,104 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-21 20:59:53,105 INFO  L158              Benchmark]: Toolchain (without parser) took 2598.56ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 49.7MB in the beginning and 63.9MB in the end (delta: -14.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB.
[2023-11-21 20:59:53,106 INFO  L158              Benchmark]: CDTParser took 0.43ms. Allocated memory is still 75.5MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 20:59:53,107 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1307.30ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 49.3MB in the beginning and 63.9MB in the end (delta: -14.6MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB.
[2023-11-21 20:59:53,108 INFO  L158              Benchmark]: Boogie Procedure Inliner took 68.14ms. Allocated memory is still 102.8MB. Free memory was 63.6MB in the beginning and 61.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-21 20:59:53,109 INFO  L158              Benchmark]: Boogie Preprocessor took 47.61ms. Allocated memory is still 102.8MB. Free memory was 61.0MB in the beginning and 59.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 20:59:53,109 INFO  L158              Benchmark]: RCFGBuilder took 553.97ms. Allocated memory is still 102.8MB. Free memory was 59.0MB in the beginning and 77.0MB in the end (delta: -18.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB.
[2023-11-21 20:59:53,110 INFO  L158              Benchmark]: TraceAbstraction took 606.20ms. Allocated memory is still 102.8MB. Free memory was 75.9MB in the beginning and 64.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-21 20:59:53,111 INFO  L158              Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 102.8MB. Free memory was 64.4MB in the beginning and 63.9MB in the end (delta: 562.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 20:59:53,118 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.43ms. Allocated memory is still 75.5MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1307.30ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 49.3MB in the beginning and 63.9MB in the end (delta: -14.6MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 68.14ms. Allocated memory is still 102.8MB. Free memory was 63.6MB in the beginning and 61.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 47.61ms. Allocated memory is still 102.8MB. Free memory was 61.0MB in the beginning and 59.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 553.97ms. Allocated memory is still 102.8MB. Free memory was 59.0MB in the beginning and 77.0MB in the end (delta: -18.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB.
 * TraceAbstraction took 606.20ms. Allocated memory is still 102.8MB. Free memory was 75.9MB in the beginning and 64.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Witness Printer took 4.21ms. Allocated memory is still 102.8MB. Free memory was 64.4MB in the beginning and 63.9MB in the end (delta: 562.1kB). 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: 851]: 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 erff at line 849. 
Possible FailurePath: 
[L847]              float x = __VERIFIER_nondet_float();
[L848]  COND FALSE  !(!(__builtin_isgreaterequal(x, 0.0f)))
[L849]              float y = erff(x);
[L850]              float z = -erff(-x);
[L851]  COND TRUE   !(y == z)
        VAL         [x=0.0, y=2.0, z=0.0]
[L851]              reach_error()
        VAL         [x=0.0, y=2.0, z=0.0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 0.0s 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
[2023-11-21 20:59:53,166 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f454590f-dc46-4990-9f89-8d39dbb5e7c0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample