./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1 --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 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 23:01:42,871 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 23:01:42,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-01 23:01:42,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 23:01:42,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 23:01:42,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 23:01:42,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 23:01:42,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 23:01:42,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 23:01:42,951 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 23:01:42,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 23:01:42,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 23:01:42,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 23:01:42,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 23:01:42,952 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 23:01:42,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 23:01:42,953 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 23:01:42,954 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:01:42,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:01:42,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:01:42,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-01 23:01:42,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-01 23:01:42,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 23:01:42,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 23:01:42,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 23:01:42,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 23:01:42,956 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_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1
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 -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801
[2024-12-01 23:01:43,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 23:01:43,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 23:01:43,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 23:01:43,170 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 23:01:43,170 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 23:01:43,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c
[2024-12-01 23:01:45,772 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/8647d33b4/06c99243d1064f7f950020de8af64e08/FLAGfe1e70441
[2024-12-01 23:01:45,971 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 23:01:45,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c
[2024-12-01 23:01:45,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/8647d33b4/06c99243d1064f7f950020de8af64e08/FLAGfe1e70441
[2024-12-01 23:01:46,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/8647d33b4/06c99243d1064f7f950020de8af64e08
[2024-12-01 23:01:46,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 23:01:46,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 23:01:46,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 23:01:46,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 23:01:46,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 23:01:46,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d175b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46, skipping insertion in model container
[2024-12-01 23:01:46,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,371 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 23:01:46,504 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010]
[2024-12-01 23:01:46,508 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379]
[2024-12-01 23:01:46,545 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:01:46,553 INFO L200 MainTranslator]: Completed pre-run
[2024-12-01 23:01:46,566 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010]
[2024-12-01 23:01:46,567 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379]
[2024-12-01 23:01:46,590 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:01:46,603 INFO L204 MainTranslator]: Completed translation
[2024-12-01 23:01:46,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46 WrapperNode
[2024-12-01 23:01:46,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 23:01:46,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 23:01:46,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 23:01:46,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 23:01:46,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,636 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168
[2024-12-01 23:01:46,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 23:01:46,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 23:01:46,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 23:01:46,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 23:01:46,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,659 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].
[2024-12-01 23:01:46,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,664 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 23:01:46,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 23:01:46,674 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 23:01:46,674 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-01 23:01:46,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (1/1) ...
[2024-12-01 23:01:46,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:01:46,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:01:46,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 23:01:46,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 23:01:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 23:01:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2024-12-01 23:01:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2024-12-01 23:01:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-01 23:01:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 23:01:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 23:01:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-01 23:01:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-01 23:01:46,796 INFO L234 CfgBuilder]: Building ICFG
[2024-12-01 23:01:46,798 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 23:01:47,086 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live.
[2024-12-01 23:01:47,086 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-01 23:01:47,096 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 23:01:47,096 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-01 23:01:47,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:47 BoogieIcfgContainer
[2024-12-01 23:01:47,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 23:01:47,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 23:01:47,099 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 23:01:47,103 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-01 23:01:47,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:01:46" (1/3) ...
[2024-12-01 23:01:47,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9f8533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:01:47, skipping insertion in model container
[2024-12-01 23:01:47,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:46" (2/3) ...
[2024-12-01 23:01:47,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9f8533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:01:47, skipping insertion in model container
[2024-12-01 23:01:47,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:47" (3/3) ...
[2024-12-01 23:01:47,105 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c
[2024-12-01 23:01:47,119 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 23:01:47,121 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2+soft_float_2a.c.cil.c that has 3 procedures, 82 locations, 1 initial locations, 2 loop locations, and 2 error locations.
[2024-12-01 23:01:47,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 23:01:47,179 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;@6974f8d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 23:01:47,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-01 23:01:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-01 23:01:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-01 23:01:47,188 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:01:47,188 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:01:47,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:01:47,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:01:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1530844763, now seen corresponding path program 1 times
[2024-12-01 23:01:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:01:47,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081156536]
[2024-12-01 23:01:47,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:01:47,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:01:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:01:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:01:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:01:47,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081156536]
[2024-12-01 23:01:47,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081156536] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:01:47,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:01:47,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 23:01:47,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140314044]
[2024-12-01 23:01:47,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:01:47,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-01 23:01:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:01:47,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-01 23:01:47,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:01:47,320 INFO L87 Difference]: Start difference. First operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:01:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:01:47,342 INFO L93 Difference]: Finished difference Result 159 states and 241 transitions.
[2024-12-01 23:01:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-01 23:01:47,344 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-01 23:01:47,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:01:47,349 INFO L225 Difference]: With dead ends: 159
[2024-12-01 23:01:47,349 INFO L226 Difference]: Without dead ends: 73
[2024-12-01 23:01:47,353 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
[2024-12-01 23:01:47,355 INFO L435 NwaCegarLoop]: 113 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, 113 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
[2024-12-01 23:01:47,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 23:01:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2024-12-01 23:01:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2024-12-01 23:01:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 66 states have internal predecessors, (93), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-01 23:01:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions.
[2024-12-01 23:01:47,383 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 7
[2024-12-01 23:01:47,384 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:01:47,384 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions.
[2024-12-01 23:01:47,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:01:47,384 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions.
[2024-12-01 23:01:47,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-01 23:01:47,384 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:01:47,384 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:01:47,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-01 23:01:47,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:01:47,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:01:47,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904345, now seen corresponding path program 1 times
[2024-12-01 23:01:47,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:01:47,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543068628]
[2024-12-01 23:01:47,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:01:47,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:01:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 23:01:47,402 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-01 23:01:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 23:01:47,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-01 23:01:47,423 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-01 23:01:47,424 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2024-12-01 23:01:47,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-12-01 23:01:47,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-01 23:01:47,428 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-01 23:01:47,436 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-01 23:01:47,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:01:47 BoogieIcfgContainer
[2024-12-01 23:01:47,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-01 23:01:47,439 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-01 23:01:47,439 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-01 23:01:47,439 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-01 23:01:47,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:47" (3/4) ...
[2024-12-01 23:01:47,442 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-01 23:01:47,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-01 23:01:47,443 INFO L158 Benchmark]: Toolchain (without parser) took 1090.61ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 56.6MB in the end (delta: 60.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-12-01 23:01:47,443 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:01:47,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.98ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 102.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-01 23:01:47,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.04ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 101.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:01:47,444 INFO L158 Benchmark]: Boogie Preprocessor took 36.06ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 99.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:01:47,444 INFO L158 Benchmark]: RCFGBuilder took 423.34ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 78.2MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-01 23:01:47,444 INFO L158 Benchmark]: TraceAbstraction took 339.82ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 56.8MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-01 23:01:47,445 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 142.6MB. Free memory was 56.8MB in the beginning and 56.6MB in the end (delta: 203.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:01:47,446 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 250.98ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 102.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 32.04ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 101.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 36.06ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 99.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 423.34ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 78.2MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 339.82ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 56.8MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 2.95ms. Allocated memory is still 142.6MB. Free memory was 56.8MB in the beginning and 56.6MB in the end (delta: 203.5kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryArithmeticFLOAToperation at line 45.
Possible FailurePath:
[L322] COND TRUE __VERIFIER_nondet_int()
[L323] CALL main1()
[L39] float IN = __VERIFIER_nondet_float();
[L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L34] COND FALSE !(!cond)
[L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L42] float x = IN;
[L44-L45] float result =
1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x;
[L47] COND TRUE !(result >= 0.0f && result < 1.398f)
[L48] reach_error()
- UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 113 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, 113 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=82occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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
[2024-12-01 23:01:47,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1 --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 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 23:01:49,356 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 23:01:49,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-12-01 23:01:49,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 23:01:49,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 23:01:49,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 23:01:49,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 23:01:49,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 23:01:49,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 23:01:49,466 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 23:01:49,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 23:01:49,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 23:01:49,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 23:01:49,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 23:01:49,467 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 23:01:49,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 23:01:49,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 23:01:49,467 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-01 23:01:49,467 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-01 23:01:49,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 23:01:49,468 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 23:01:49,469 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:01:49,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:01:49,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:01:49,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 23:01:49,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 23:01:49,470 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_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1
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 -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801
[2024-12-01 23:01:49,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 23:01:49,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 23:01:49,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 23:01:49,694 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 23:01:49,694 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 23:01:49,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c
[2024-12-01 23:01:52,273 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/fd951baa0/32e3f4b4694c4c9b8d3722cc366005f9/FLAG99dfb93a0
[2024-12-01 23:01:52,503 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 23:01:52,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c
[2024-12-01 23:01:52,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/fd951baa0/32e3f4b4694c4c9b8d3722cc366005f9/FLAG99dfb93a0
[2024-12-01 23:01:52,856 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/data/fd951baa0/32e3f4b4694c4c9b8d3722cc366005f9
[2024-12-01 23:01:52,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 23:01:52,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 23:01:52,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 23:01:52,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 23:01:52,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 23:01:52,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:01:52" (1/1) ...
[2024-12-01 23:01:52,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669202ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:52, skipping insertion in model container
[2024-12-01 23:01:52,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:01:52" (1/1) ...
[2024-12-01 23:01:52,880 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 23:01:52,995 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010]
[2024-12-01 23:01:52,999 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379]
[2024-12-01 23:01:53,036 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:01:53,046 INFO L200 MainTranslator]: Completed pre-run
[2024-12-01 23:01:53,057 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010]
[2024-12-01 23:01:53,058 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_07c8f6ca-3542-4aa6-afae-86977576d756/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379]
[2024-12-01 23:01:53,082 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:01:53,094 INFO L204 MainTranslator]: Completed translation
[2024-12-01 23:01:53,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53 WrapperNode
[2024-12-01 23:01:53,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 23:01:53,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 23:01:53,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 23:01:53,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 23:01:53,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,128 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132
[2024-12-01 23:01:53,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 23:01:53,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 23:01:53,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 23:01:53,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 23:01:53,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,149 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].
[2024-12-01 23:01:53,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 23:01:53,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 23:01:53,168 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 23:01:53,168 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-01 23:01:53,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (1/1) ...
[2024-12-01 23:01:53,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:01:53,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:01:53,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 23:01:53,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 23:01:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 23:01:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-01 23:01:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2024-12-01 23:01:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2024-12-01 23:01:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 23:01:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 23:01:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-01 23:01:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-01 23:01:53,269 INFO L234 CfgBuilder]: Building ICFG
[2024-12-01 23:01:53,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 23:01:57,670 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live.
[2024-12-01 23:01:57,670 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-01 23:01:57,678 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 23:01:57,678 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-01 23:01:57,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:57 BoogieIcfgContainer
[2024-12-01 23:01:57,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 23:01:57,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 23:01:57,680 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 23:01:57,684 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-01 23:01:57,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:01:52" (1/3) ...
[2024-12-01 23:01:57,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f75e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:01:57, skipping insertion in model container
[2024-12-01 23:01:57,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:53" (2/3) ...
[2024-12-01 23:01:57,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f75e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:01:57, skipping insertion in model container
[2024-12-01 23:01:57,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:57" (3/3) ...
[2024-12-01 23:01:57,685 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c
[2024-12-01 23:01:57,695 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 23:01:57,696 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2+soft_float_2a.c.cil.c that has 3 procedures, 59 locations, 1 initial locations, 2 loop locations, and 2 error locations.
[2024-12-01 23:01:57,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 23:01:57,741 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;@500542c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 23:01:57,741 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-01 23:01:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-01 23:01:57,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-01 23:01:57,747 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:01:57,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:01:57,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:01:57,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:01:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash 78502818, now seen corresponding path program 1 times
[2024-12-01 23:01:57,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 23:01:57,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143128304]
[2024-12-01 23:01:57,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:01:57,759 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
[2024-12-01 23:01:57,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 23:01:57,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 23:01:57,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 23:01:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:01:58,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-01 23:01:58,176 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:01:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:01:58,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 23:01:58,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-01 23:01:58,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143128304]
[2024-12-01 23:01:58,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143128304] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:01:58,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:01:58,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 23:01:58,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239765868]
[2024-12-01 23:01:58,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:01:58,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-01 23:01:58,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-01 23:01:58,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-01 23:01:58,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:01:58,204 INFO L87 Difference]: Start difference. First operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:01:58,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:01:58,221 INFO L93 Difference]: Finished difference Result 113 states and 171 transitions.
[2024-12-01 23:01:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-01 23:01:58,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-01 23:01:58,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:01:58,228 INFO L225 Difference]: With dead ends: 113
[2024-12-01 23:01:58,228 INFO L226 Difference]: Without dead ends: 50
[2024-12-01 23:01:58,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:01:58,232 INFO L435 NwaCegarLoop]: 80 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, 80 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
[2024-12-01 23:01:58,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 23:01:58,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-12-01 23:01:58,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-12-01 23:01:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-01 23:01:58,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions.
[2024-12-01 23:01:58,258 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 7
[2024-12-01 23:01:58,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:01:58,258 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions.
[2024-12-01 23:01:58,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:01:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions.
[2024-12-01 23:01:58,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-01 23:01:58,259 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:01:58,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:01:58,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 23:01:58,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 23:01:58,460 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:01:58,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:01:58,460 INFO L85 PathProgramCache]: Analyzing trace with hash 78562400, now seen corresponding path program 1 times
[2024-12-01 23:01:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 23:01:58,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281277809]
[2024-12-01 23:01:58,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:01:58,461 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
[2024-12-01 23:01:58,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 23:01:58,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 23:01:58,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 23:03:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 23:03:18,035 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-01 23:03:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 23:03:19,605 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-12-01 23:03:19,605 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-01 23:03:19,606 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2024-12-01 23:03:19,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-12-01 23:03:19,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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)] Forceful destruction successful, exit code 0
[2024-12-01 23:03:19,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 23:03:19,809 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-01 23:03:19,820 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-01 23:03:19,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:03:19 BoogieIcfgContainer
[2024-12-01 23:03:19,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-01 23:03:19,823 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-01 23:03:19,823 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-01 23:03:19,823 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-01 23:03:19,823 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:57" (3/4) ...
[2024-12-01 23:03:19,824 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-12-01 23:03:19,844 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7.
[2024-12-01 23:03:19,878 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-01 23:03:19,878 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-01 23:03:19,878 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-01 23:03:19,879 INFO L158 Benchmark]: Toolchain (without parser) took 87020.05ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 38.3MB in the end (delta: 31.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB.
[2024-12-01 23:03:19,879 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:19,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.54ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 55.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-01 23:03:19,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.92ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 53.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:19,880 INFO L158 Benchmark]: Boogie Preprocessor took 37.99ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 51.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:19,880 INFO L158 Benchmark]: RCFGBuilder took 4511.30ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 63.4MB in the end (delta: -12.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB.
[2024-12-01 23:03:19,880 INFO L158 Benchmark]: TraceAbstraction took 82141.98ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 42.6MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-01 23:03:19,881 INFO L158 Benchmark]: Witness Printer took 55.54ms. Allocated memory is still 92.3MB. Free memory was 42.6MB in the beginning and 38.3MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:19,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 235.54ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 55.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 32.92ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 53.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 37.99ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 51.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 4511.30ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 63.4MB in the end (delta: -12.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 82141.98ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 42.6MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 55.54ms. Allocated memory is still 92.3MB. Free memory was 42.6MB in the beginning and 38.3MB in the end (delta: 4.3MB). 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
- CounterExampleResult [Line: 48]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L322] COND TRUE __VERIFIER_nondet_int()
[L323] CALL main1()
[L39] float IN = __VERIFIER_nondet_float();
[L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L34] COND FALSE !(!cond)
[L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L42] float x = IN;
[L44-L45] float result =
1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x;
VAL [result=1.398437261581421]
[L47] COND TRUE !(result >= 0.0f && result < 1.398f)
[L48] reach_error()
- UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 82.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 80 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, 80 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 79.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-12-01 23:03:19,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c8f6ca-3542-4aa6-afae-86977576d756/bin/uautomizer-verify-84ZbGMXZE1/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