./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC --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 8a6cb7e7408af12d21fe6db26ed13525a6aeea3116434a553f8758caff4c6db4
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:55:56,861 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:55:56,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 22:55:56,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:55:56,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:55:56,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:55:56,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:55:56,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:55:56,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:55:56,963 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:55:56,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:55:56,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:55:56,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:55:56,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:55:56,964 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:55:56,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 22:55:56,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:55:56,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 22:55:56,966 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:55:56,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 22:55:56,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:55:56,966 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:55:56,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:55:56,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:55:56,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:55:56,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:55:56,968 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC
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 -> 8a6cb7e7408af12d21fe6db26ed13525a6aeea3116434a553f8758caff4c6db4
[2024-11-23 22:55:57,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:55:57,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:55:57,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:55:57,258 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:55:57,259 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:55:57,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/floats-cdfpl/square_2.i
[2024-11-23 22:56:00,384 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/43abf1e95/2066c25def4846dc9652834401d75ce0/FLAG0fad535a3
[2024-11-23 22:56:00,711 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:56:00,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/sv-benchmarks/c/floats-cdfpl/square_2.i
[2024-11-23 22:56:00,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/43abf1e95/2066c25def4846dc9652834401d75ce0/FLAG0fad535a3
[2024-11-23 22:56:00,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/43abf1e95/2066c25def4846dc9652834401d75ce0
[2024-11-23 22:56:00,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:56:00,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:56:00,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:56:00,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:56:00,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:56:00,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:56:00" (1/1) ...
[2024-11-23 22:56:00,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a8ab2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:00, skipping insertion in model container
[2024-11-23 22:56:00,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:56:00" (1/1) ...
[2024-11-23 22:56:00,784 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:56:00,963 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_f30cb497-8491-4825-b053-abd25d37fa87/sv-benchmarks/c/floats-cdfpl/square_2.i[1627,1640]
[2024-11-23 22:56:00,967 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:56:00,978 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:56:00,997 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_f30cb497-8491-4825-b053-abd25d37fa87/sv-benchmarks/c/floats-cdfpl/square_2.i[1627,1640]
[2024-11-23 22:56:00,997 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:56:01,014 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:56:01,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01 WrapperNode
[2024-11-23 22:56:01,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:56:01,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:56:01,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:56:01,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:56:01,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,041 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21
[2024-11-23 22:56:01,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:56:01,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:56:01,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:56:01,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:56:01,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,059 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-23 22:56:01,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,063 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:56:01,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:56:01,069 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:56:01,069 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:56:01,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (1/1) ...
[2024-11-23 22:56:01,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:56:01,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:56:01,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:56:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:56:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:56:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 22:56:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:56:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:56:01,189 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:56:01,191 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:56:01,287 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-23 22:56:01,288 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:56:01,297 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:56:01,297 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-23 22:56:01,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:56:01 BoogieIcfgContainer
[2024-11-23 22:56:01,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:56:01,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:56:01,300 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:56:01,306 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:56:01,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:56:00" (1/3) ...
[2024-11-23 22:56:01,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fe0a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:56:01, skipping insertion in model container
[2024-11-23 22:56:01,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:01" (2/3) ...
[2024-11-23 22:56:01,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fe0a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:56:01, skipping insertion in model container
[2024-11-23 22:56:01,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:56:01" (3/3) ...
[2024-11-23 22:56:01,309 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2.i
[2024-11-23 22:56:01,325 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:56:01,327 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-11-23 22:56:01,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:56:01,396 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=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;@59ca1d90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:56:01,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 22:56:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-23 22:56:01,411 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:56:01,412 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-23 22:56:01,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:56:01,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:56:01,420 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times
[2024-11-23 22:56:01,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:56:01,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532224895]
[2024-11-23 22:56:01,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:56:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:56:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:56:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:56:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:56:01,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532224895]
[2024-11-23 22:56:01,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532224895] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:56:01,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:56:01,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:56:01,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917684853]
[2024-11-23 22:56:01,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:56:01,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 22:56:01,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:56:01,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 22:56:01,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:56:01,622 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:56:01,636 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions.
[2024-11-23 22:56:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 22:56:01,638 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6
[2024-11-23 22:56:01,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:56:01,645 INFO L225 Difference]: With dead ends: 19
[2024-11-23 22:56:01,646 INFO L226 Difference]: Without dead ends: 7
[2024-11-23 22:56:01,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:56:01,656 INFO L435 NwaCegarLoop]: 10 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, 10 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
[2024-11-23 22:56:01,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 22:56:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states.
[2024-11-23 22:56:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7.
[2024-11-23 22:56:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:01,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions.
[2024-11-23 22:56:01,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6
[2024-11-23 22:56:01,693 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:56:01,694 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions.
[2024-11-23 22:56:01,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions.
[2024-11-23 22:56:01,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-23 22:56:01,695 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:56:01,695 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-23 22:56:01,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 22:56:01,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:56:01,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:56:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times
[2024-11-23 22:56:01,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:56:01,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080524646]
[2024-11-23 22:56:01,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:56:01,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:56:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:56:01,719 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 22:56:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:56:01,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-23 22:56:01,756 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 22:56:01,758 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-23 22:56:01,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 22:56:01,763 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-23 22:56:01,778 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 22:56:01,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:56:01 BoogieIcfgContainer
[2024-11-23 22:56:01,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 22:56:01,786 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 22:56:01,786 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 22:56:01,786 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 22:56:01,788 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:56:01" (3/4) ...
[2024-11-23 22:56:01,791 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 22:56:01,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 22:56:01,793 INFO L158 Benchmark]: Toolchain (without parser) took 1037.74ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 64.1MB in the end (delta: 41.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2024-11-23 22:56:01,793 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:56:01,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.77ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 94.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:56:01,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.67ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 93.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:56:01,794 INFO L158 Benchmark]: Boogie Preprocessor took 26.05ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 92.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:56:01,795 INFO L158 Benchmark]: RCFGBuilder took 229.24ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 83.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:56:01,795 INFO L158 Benchmark]: TraceAbstraction took 485.20ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 64.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 22:56:01,795 INFO L158 Benchmark]: Witness Printer took 6.24ms. Allocated memory is still 142.6MB. Free memory was 64.4MB in the beginning and 64.1MB in the end (delta: 334.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:56:01,799 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 258.77ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 94.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 25.67ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 93.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 26.05ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 92.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 229.24ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 83.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 485.20ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 64.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 6.24ms. Allocated memory is still 142.6MB. Free memory was 64.4MB in the beginning and 64.1MB in the end (delta: 334.2kB). 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: 38]: 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 37, overapproximation of someBinaryFLOATComparisonOperation at line 30, overapproximation of someBinaryArithmeticFLOAToperation at line 35.
Possible FailurePath:
[L29] float IN = __VERIFIER_nondet_float();
[L30] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L24] COND FALSE !(!cond)
[L30] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L32] float x = IN;
[L34-L35] float result =
1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x;
[L37] COND TRUE !(result >= 0.0f && result < 1.398f)
[L38] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 10 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, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-23 22:56:01,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC --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 8a6cb7e7408af12d21fe6db26ed13525a6aeea3116434a553f8758caff4c6db4
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:56:04,700 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:56:04,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-23 22:56:04,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:56:04,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:56:04,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:56:04,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:56:04,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:56:04,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:56:04,896 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:56:04,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:56:04,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:56:04,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:56:04,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:56:04,898 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:56:04,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:56:04,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 22:56:04,898 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:56:04,898 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:56:04,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:56:04,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:56:04,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 22:56:04,900 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:56:04,900 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:56:04,900 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:56:04,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:56:04,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:56:04,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:56:04,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:56:04,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:56:04,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:56:04,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:56:04,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:56:04,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:56:04,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:56:04,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:56:04,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:56:04,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:56:04,903 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC
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 -> 8a6cb7e7408af12d21fe6db26ed13525a6aeea3116434a553f8758caff4c6db4
[2024-11-23 22:56:05,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:56:05,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:56:05,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:56:05,248 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:56:05,249 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:56:05,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/floats-cdfpl/square_2.i
[2024-11-23 22:56:08,208 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/51786977a/511a947efdb54dd0a6cdf631b0fc9aa2/FLAGf5ee57467
[2024-11-23 22:56:08,489 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:56:08,494 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/sv-benchmarks/c/floats-cdfpl/square_2.i
[2024-11-23 22:56:08,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/51786977a/511a947efdb54dd0a6cdf631b0fc9aa2/FLAGf5ee57467
[2024-11-23 22:56:08,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/data/51786977a/511a947efdb54dd0a6cdf631b0fc9aa2
[2024-11-23 22:56:08,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:56:08,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:56:08,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:56:08,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:56:08,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:56:08,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea1d5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08, skipping insertion in model container
[2024-11-23 22:56:08,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,563 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:56:08,796 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_f30cb497-8491-4825-b053-abd25d37fa87/sv-benchmarks/c/floats-cdfpl/square_2.i[1627,1640]
[2024-11-23 22:56:08,804 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:56:08,827 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:56:08,850 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_f30cb497-8491-4825-b053-abd25d37fa87/sv-benchmarks/c/floats-cdfpl/square_2.i[1627,1640]
[2024-11-23 22:56:08,851 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:56:08,873 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:56:08,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08 WrapperNode
[2024-11-23 22:56:08,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:56:08,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:56:08,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:56:08,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:56:08,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,914 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22
[2024-11-23 22:56:08,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:56:08,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:56:08,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:56:08,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:56:08,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,937 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-23 22:56:08,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,944 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:56:08,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:56:08,953 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:56:08,953 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:56:08,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (1/1) ...
[2024-11-23 22:56:08,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:56:08,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:56:08,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:56:08,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:56:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:56:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 22:56:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:56:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:56:09,093 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:56:09,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:56:13,335 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-23 22:56:13,335 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:56:13,346 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:56:13,347 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-23 22:56:13,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:56:13 BoogieIcfgContainer
[2024-11-23 22:56:13,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:56:13,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:56:13,351 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:56:13,357 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:56:13,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:56:08" (1/3) ...
[2024-11-23 22:56:13,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1f4da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:56:13, skipping insertion in model container
[2024-11-23 22:56:13,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:56:08" (2/3) ...
[2024-11-23 22:56:13,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1f4da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:56:13, skipping insertion in model container
[2024-11-23 22:56:13,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:56:13" (3/3) ...
[2024-11-23 22:56:13,361 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2.i
[2024-11-23 22:56:13,383 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:56:13,385 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-11-23 22:56:13,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:56:13,484 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=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;@5a320c3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:56:13,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 22:56:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:13,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-23 22:56:13,497 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:56:13,497 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-23 22:56:13,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:56:13,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:56:13,507 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times
[2024-11-23 22:56:13,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:56:13,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757285370]
[2024-11-23 22:56:13,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:56:13,524 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
[2024-11-23 22:56:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 22:56:13,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 22:56:13,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 22:56:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:56:14,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 22:56:14,132 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:56:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:56:14,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:56:14,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:56:14,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757285370]
[2024-11-23 22:56:14,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757285370] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:56:14,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:56:14,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:56:14,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748686696]
[2024-11-23 22:56:14,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:56:14,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 22:56:14,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:56:14,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 22:56:14,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:56:14,197 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:14,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:56:14,213 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions.
[2024-11-23 22:56:14,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 22:56:14,215 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6
[2024-11-23 22:56:14,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:56:14,224 INFO L225 Difference]: With dead ends: 19
[2024-11-23 22:56:14,224 INFO L226 Difference]: Without dead ends: 7
[2024-11-23 22:56:14,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:56:14,235 INFO L435 NwaCegarLoop]: 10 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, 10 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
[2024-11-23 22:56:14,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 22:56:14,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states.
[2024-11-23 22:56:14,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7.
[2024-11-23 22:56:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions.
[2024-11-23 22:56:14,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6
[2024-11-23 22:56:14,271 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:56:14,271 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions.
[2024-11-23 22:56:14,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:56:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions.
[2024-11-23 22:56:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-23 22:56:14,272 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:56:14,272 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-23 22:56:14,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 22:56:14,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 22:56:14,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:56:14,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:56:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times
[2024-11-23 22:56:14,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:56:14,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242572511]
[2024-11-23 22:56:14,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:56:14,475 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
[2024-11-23 22:56:14,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 22:56:14,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 22:56:14,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 22:56:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:56:38,457 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 22:57:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:57:30,760 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-23 22:57:30,760 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 22:57:30,762 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-23 22:57:30,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 22:57:30,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 22:57:30,969 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-23 22:57:30,986 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 22:57:30,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:57:30 BoogieIcfgContainer
[2024-11-23 22:57:30,990 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 22:57:30,990 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 22:57:30,990 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 22:57:30,991 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 22:57:30,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:56:13" (3/4) ...
[2024-11-23 22:57:30,993 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-23 22:57:31,039 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5.
[2024-11-23 22:57:31,097 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-23 22:57:31,098 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-23 22:57:31,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 22:57:31,100 INFO L158 Benchmark]: Toolchain (without parser) took 82566.91ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 52.9MB in the end (delta: 8.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB.
[2024-11-23 22:57:31,101 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:57:31,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.21ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 49.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:57:31,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.86ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 48.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:57:31,102 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 47.2MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:57:31,102 INFO L158 Benchmark]: RCFGBuilder took 4395.24ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 38.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:57:31,103 INFO L158 Benchmark]: TraceAbstraction took 77638.95ms. Allocated memory is still 83.9MB. Free memory was 37.4MB in the beginning and 56.9MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:57:31,103 INFO L158 Benchmark]: Witness Printer took 108.07ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 52.9MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:57:31,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 341.21ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 49.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.86ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 48.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 36.56ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 47.2MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 4395.24ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 38.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 77638.95ms. Allocated memory is still 83.9MB. Free memory was 37.4MB in the beginning and 56.9MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 108.07ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 52.9MB in the end (delta: 4.0MB). 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: 38]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L29] float IN = __VERIFIER_nondet_float();
[L30] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L24] COND FALSE !(!cond)
[L30] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L32] float x = IN;
[L34-L35] float result =
1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x;
VAL [result=1.3982268571853638]
[L37] COND TRUE !(result >= 0.0f && result < 1.398f)
[L38] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 77.5s, 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, 10 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, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 24.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 18 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, ConComCheckerStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-23 22:57:31,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30cb497-8491-4825-b053-abd25d37fa87/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE