./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c --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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:32:42,272 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:32:42,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 01:32:42,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:32:42,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:32:42,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:32:42,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:32:42,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:32:42,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:32:42,385 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:32:42,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:32:42,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:32:42,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:32:42,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:32:42,385 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:32:42,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:32:42,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:32:42,386 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:32:42,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:32:42,386 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:32:42,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:32:42,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:32:42,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:32:42,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:32:42,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:32:42,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:32:42,389 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:32:42,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:32:42,390 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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 -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0
[2024-11-24 01:32:42,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:32:42,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:32:42,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:32:42,737 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:32:42,737 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:32:42,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c
[2024-11-24 01:32:45,714 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/22f38b153/0bc9dc0abb6a452d8fa589f878d77805/FLAG3275a91b7
[2024-11-24 01:32:45,986 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:32:45,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c
[2024-11-24 01:32:45,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/22f38b153/0bc9dc0abb6a452d8fa589f878d77805/FLAG3275a91b7
[2024-11-24 01:32:46,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/22f38b153/0bc9dc0abb6a452d8fa589f878d77805
[2024-11-24 01:32:46,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:32:46,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:32:46,026 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:32:46,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:32:46,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:32:46,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193fcd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46, skipping insertion in model container
[2024-11-24 01:32:46,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,051 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:32:46,253 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023]
[2024-11-24 01:32:46,266 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180]
[2024-11-24 01:32:46,274 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306]
[2024-11-24 01:32:46,278 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:32:46,294 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:32:46,312 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023]
[2024-11-24 01:32:46,318 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180]
[2024-11-24 01:32:46,320 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306]
[2024-11-24 01:32:46,323 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:32:46,339 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:32:46,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46 WrapperNode
[2024-11-24 01:32:46,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:32:46,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:32:46,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:32:46,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:32:46,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,375 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 29
[2024-11-24 01:32:46,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:32:46,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:32:46,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:32:46,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:32:46,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,385 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,398 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].
[2024-11-24 01:32:46,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:32:46,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:32:46,413 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:32:46,414 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:32:46,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (1/1) ...
[2024-11-24 01:32:46,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:32:46,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:32:46,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:32:46,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:32:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:32:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:32:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:32:46,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:32:46,538 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:32:46,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:32:46,669 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-24 01:32:46,669 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:32:46,681 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:32:46,682 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 01:32:46,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:46 BoogieIcfgContainer
[2024-11-24 01:32:46,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:32:46,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:32:46,690 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:32:46,696 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:32:46,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:32:46" (1/3) ...
[2024-11-24 01:32:46,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f4efc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:32:46, skipping insertion in model container
[2024-11-24 01:32:46,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:46" (2/3) ...
[2024-11-24 01:32:46,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f4efc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:32:46, skipping insertion in model container
[2024-11-24 01:32:46,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:46" (3/3) ...
[2024-11-24 01:32:46,700 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c
[2024-11-24 01:32:46,717 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:32:46,719 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp6.c that has 1 procedures, 17 locations, 1 initial locations, 0 loop locations, and 3 error locations.
[2024-11-24 01:32:46,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:32:46,800 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;@3b2d4608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:32:46,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-24 01:32:46,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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)
[2024-11-24 01:32:46,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:32:46,810 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:32:46,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:32:46,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:32:46,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:32:46,817 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times
[2024-11-24 01:32:46,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:32:46,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814454010]
[2024-11-24 01:32:46,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:32:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:32:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:32:46,924 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:32:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:32:46,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 01:32:46,955 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:32:46,957 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2024-11-24 01:32:46,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2024-11-24 01:32:46,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining)
[2024-11-24 01:32:46,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:32:46,965 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-24 01:32:46,978 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:32:46,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:32:46 BoogieIcfgContainer
[2024-11-24 01:32:46,987 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:32:46,988 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:32:46,988 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:32:46,988 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:32:46,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:46" (3/4) ...
[2024-11-24 01:32:46,992 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-24 01:32:46,994 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:32:46,997 INFO L158 Benchmark]: Toolchain (without parser) took 971.53ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 80.9MB in the end (delta: 36.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-11-24 01:32:46,997 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:32:46,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.26ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 104.8MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:46,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.72ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.5MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:46,999 INFO L158 Benchmark]: Boogie Preprocessor took 36.06ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 102.5MB in the end (delta: 958.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:32:47,000 INFO L158 Benchmark]: RCFGBuilder took 272.35ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 93.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:47,002 INFO L158 Benchmark]: TraceAbstraction took 297.55ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 81.3MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:47,002 INFO L158 Benchmark]: Witness Printer took 5.96ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 81.1MB in the end (delta: 234.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:32:47,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 315.26ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 104.8MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 32.72ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.5MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 36.06ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 102.5MB in the end (delta: 958.7kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 272.35ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 93.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 297.55ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 81.3MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Witness Printer took 5.96ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 81.1MB in the end (delta: 234.0kB). 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: 25]: 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 25, overapproximation of someBinaryArithmeticFLOAToperation at line 23.
Possible FailurePath:
[L49] CALL multiply()
[L20] float f1=0x1.000000p-1f;
[L21] float f2=0x1.fffffep-126f;
[L23] float res = f1 * f2;
[L25] COND TRUE !(res == 0x1.0p-126f)
[L25] reach_error()
- UnprovableResult [Line: 35]: 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.
- UnprovableResult [Line: 44]: 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 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-24 01:32:47,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:32:49,765 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:32:49,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-24 01:32:49,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:32:49,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:32:49,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:32:49,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:32:49,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:32:49,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:32:49,959 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:32:49,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:32:49,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:32:49,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:32:49,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:32:49,960 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:32:49,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:32:49,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-24 01:32:49,961 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:32:49,962 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:32:49,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:32:49,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:32:49,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-24 01:32:49,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:32:49,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:32:49,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:32:49,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:32:49,966 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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 -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0
[2024-11-24 01:32:50,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:32:50,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:32:50,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:32:50,323 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:32:50,324 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:32:50,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c
[2024-11-24 01:32:53,352 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/3e84df708/f91cf49b0e494be4b45b537a578cc2d4/FLAGc5665dde5
[2024-11-24 01:32:53,565 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:32:53,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c
[2024-11-24 01:32:53,573 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/3e84df708/f91cf49b0e494be4b45b537a578cc2d4/FLAGc5665dde5
[2024-11-24 01:32:53,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/data/3e84df708/f91cf49b0e494be4b45b537a578cc2d4
[2024-11-24 01:32:53,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:32:53,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:32:53,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:32:53,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:32:53,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:32:53,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:53,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec8aade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53, skipping insertion in model container
[2024-11-24 01:32:53,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:53,632 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:32:53,842 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023]
[2024-11-24 01:32:53,852 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180]
[2024-11-24 01:32:53,864 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306]
[2024-11-24 01:32:53,866 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:32:53,893 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:32:53,913 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023]
[2024-11-24 01:32:53,921 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180]
[2024-11-24 01:32:53,923 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_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306]
[2024-11-24 01:32:53,926 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:32:53,948 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:32:53,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53 WrapperNode
[2024-11-24 01:32:53,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:32:53,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:32:53,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:32:53,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:32:53,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:53,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:53,989 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30
[2024-11-24 01:32:53,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:32:53,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:32:53,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:32:53,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:32:54,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,022 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].
[2024-11-24 01:32:54,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:32:54,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:32:54,050 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:32:54,050 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:32:54,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (1/1) ...
[2024-11-24 01:32:54,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:32:54,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:32:54,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:32:54,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:32:54,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:32:54,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-24 01:32:54,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:32:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:32:54,178 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:32:54,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:32:54,849 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2024-11-24 01:32:54,849 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:32:54,864 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:32:54,864 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 01:32:54,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:54 BoogieIcfgContainer
[2024-11-24 01:32:54,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:32:54,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:32:54,870 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:32:54,877 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:32:54,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:32:53" (1/3) ...
[2024-11-24 01:32:54,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c624f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:32:54, skipping insertion in model container
[2024-11-24 01:32:54,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:53" (2/3) ...
[2024-11-24 01:32:54,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c624f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:32:54, skipping insertion in model container
[2024-11-24 01:32:54,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:54" (3/3) ...
[2024-11-24 01:32:54,883 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c
[2024-11-24 01:32:54,902 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:32:54,904 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp6.c that has 1 procedures, 17 locations, 1 initial locations, 0 loop locations, and 3 error locations.
[2024-11-24 01:32:54,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:32:54,996 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;@4b36e85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:32:54,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-24 01:32:55,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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)
[2024-11-24 01:32:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:32:55,007 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:32:55,008 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:32:55,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:32:55,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:32:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times
[2024-11-24 01:32:55,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:32:55,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957973076]
[2024-11-24 01:32:55,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:32:55,029 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
[2024-11-24 01:32:55,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 01:32:55,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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)
[2024-11-24 01:32:55,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
[2024-11-24 01:32:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:32:55,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:32:55,173 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:32:55,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:32:55,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:32:55,303 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:32:55,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957973076]
[2024-11-24 01:32:55,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957973076] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:32:55,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:32:55,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:32:55,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68491135]
[2024-11-24 01:32:55,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:32:55,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:32:55,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:32:55,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:32:55,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:32:55,332 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2024-11-24 01:32:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:32:56,428 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions.
[2024-11-24 01:32:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:32:56,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2024-11-24 01:32:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:32:56,437 INFO L225 Difference]: With dead ends: 29
[2024-11-24 01:32:56,437 INFO L226 Difference]: Without dead ends: 11
[2024-11-24 01:32:56,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:32:56,443 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:32:56,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-24 01:32:56,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2024-11-24 01:32:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2024-11-24 01:32:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 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)
[2024-11-24 01:32:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions.
[2024-11-24 01:32:56,478 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4
[2024-11-24 01:32:56,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:32:56,479 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions.
[2024-11-24 01:32:56,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2024-11-24 01:32:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions.
[2024-11-24 01:32:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 01:32:56,481 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:32:56,481 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 01:32:56,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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)] Forceful destruction successful, exit code 0
[2024-11-24 01:32:56,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
[2024-11-24 01:32:56,682 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:32:56,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:32:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times
[2024-11-24 01:32:56,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:32:56,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573629219]
[2024-11-24 01:32:56,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:32:56,684 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
[2024-11-24 01:32:56,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 01:32:56,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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)
[2024-11-24 01:32:56,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
[2024-11-24 01:32:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:32:56,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:32:56,920 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:32:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:32:57,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:32:57,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:32:57,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573629219]
[2024-11-24 01:32:57,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573629219] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:32:57,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:32:57,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:32:57,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47015450]
[2024-11-24 01:32:57,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:32:57,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:32:57,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:32:57,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:32:57,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:32:57,014 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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)
[2024-11-24 01:32:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:32:57,308 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions.
[2024-11-24 01:32:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:32:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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
[2024-11-24 01:32:57,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:32:57,311 INFO L225 Difference]: With dead ends: 11
[2024-11-24 01:32:57,311 INFO L226 Difference]: Without dead ends: 9
[2024-11-24 01:32:57,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:32:57,312 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:32:57,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:32:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-24 01:32:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-24 01:32:57,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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)
[2024-11-24 01:32:57,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions.
[2024-11-24 01:32:57,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6
[2024-11-24 01:32:57,316 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:32:57,316 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions.
[2024-11-24 01:32:57,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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)
[2024-11-24 01:32:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2024-11-24 01:32:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-24 01:32:57,317 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:32:57,317 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:32:57,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
[2024-11-24 01:32:57,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
[2024-11-24 01:32:57,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:32:57,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:32:57,519 INFO L85 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times
[2024-11-24 01:32:57,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:32:57,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677062458]
[2024-11-24 01:32:57,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:32:57,519 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
[2024-11-24 01:32:57,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 01:32:57,521 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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)
[2024-11-24 01:32:57,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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 (4)] Waiting until timeout for monitored process
[2024-11-24 01:32:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:32:57,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 01:32:57,772 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:32:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:32:57,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:32:57,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:32:57,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677062458]
[2024-11-24 01:32:57,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677062458] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:32:57,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:32:57,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:32:57,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662677496]
[2024-11-24 01:32:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:32:57,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:32:57,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:32:57,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:32:57,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:32:57,863 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-11-24 01:32:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:32:58,214 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2024-11-24 01:32:58,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:32:58,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8
[2024-11-24 01:32:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:32:58,219 INFO L225 Difference]: With dead ends: 9
[2024-11-24 01:32:58,219 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 01:32:58,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:32:58,220 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:32:58,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:32:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 01:32:58,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 01:32:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2024-11-24 01:32:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 01:32:58,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8
[2024-11-24 01:32:58,223 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:32:58,223 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 01:32:58,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-11-24 01:32:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 01:32:58,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 01:32:58,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2024-11-24 01:32:58,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2024-11-24 01:32:58,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining)
[2024-11-24 01:32:58,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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 (4)] Ended with exit code 0
[2024-11-24 01:32:58,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
[2024-11-24 01:32:58,430 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-24 01:32:58,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-24 01:32:58,437 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:32:58,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:32:58 BoogieIcfgContainer
[2024-11-24 01:32:58,444 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:32:58,444 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:32:58,444 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:32:58,445 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:32:58,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:54" (3/4) ...
[2024-11-24 01:32:58,450 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 01:32:58,458 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2024-11-24 01:32:58,459 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-24 01:32:58,459 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-24 01:32:58,459 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 01:32:58,528 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 01:32:58,528 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 01:32:58,528 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:32:58,531 INFO L158 Benchmark]: Toolchain (without parser) took 4924.65ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 41.9MB in the end (delta: 19.3MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB.
[2024-11-24 01:32:58,531 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:32:58,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.12ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 47.5MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:58,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.40ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:58,533 INFO L158 Benchmark]: Boogie Preprocessor took 55.29ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:32:58,533 INFO L158 Benchmark]: RCFGBuilder took 821.33ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 35.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:58,536 INFO L158 Benchmark]: TraceAbstraction took 3574.38ms. Allocated memory is still 83.9MB. Free memory was 35.0MB in the beginning and 46.7MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:32:58,537 INFO L158 Benchmark]: Witness Printer took 83.91ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 41.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:32:58,538 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 344.12ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 47.5MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.40ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 55.29ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 821.33ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 35.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 3574.38ms. Allocated memory is still 83.9MB. Free memory was 35.0MB in the beginning and 46.7MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 83.91ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 41.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. 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
- PositiveResult [Line: 25]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- PositiveResult [Line: 35]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- PositiveResult [Line: 44]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 3 NumberOfNonLiveVariables, 65 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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
- AllSpecificationsHoldResult: All specifications hold
3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-24 01:32:58,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a32a635-5fbf-497c-b5ab-4dbae30c66f8/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
Result:
TRUE