./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:44:53,091 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:44:53,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:44:53,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:44:53,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:44:53,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:44:53,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:44:53,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:44:53,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:44:53,251 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:44:53,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:44:53,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:44:53,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:44:53,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:44:53,252 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:44:53,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:44:53,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:44:53,253 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:44:53,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:44:53,253 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:44:53,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:44:53,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:44:53,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:44:53,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:44:53,254 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:44:53,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 00:44:53,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:44:53,255 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:44:53,255 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:44:53,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:44:53,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:44:53,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:44:53,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:44:53,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:44:53,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:44:53,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:44:53,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:44:53,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:44:53,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:44:53,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:44:53,257 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 00:44:53,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:44:53,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:44:53,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:44:53,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:44:53,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:44:53,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:44:53,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:44:53,258 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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 -> 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a
[2024-11-24 00:44:53,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:44:53,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:44:53,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:44:53,666 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:44:53,667 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:44:53,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i
[2024-11-24 00:44:57,359 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/f813fd9f3/3de7b00e05a8416a94e3d83d8a6671db/FLAG6a3f6484a
[2024-11-24 00:44:57,735 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:44:57,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i
[2024-11-24 00:44:57,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/f813fd9f3/3de7b00e05a8416a94e3d83d8a6671db/FLAG6a3f6484a
[2024-11-24 00:44:57,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/f813fd9f3/3de7b00e05a8416a94e3d83d8a6671db
[2024-11-24 00:44:57,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:44:57,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:44:57,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:44:57,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:44:57,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:44:57,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:44:57" (1/1) ...
[2024-11-24 00:44:57,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:57, skipping insertion in model container
[2024-11-24 00:44:57,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:44:57" (1/1) ...
[2024-11-24 00:44:57,976 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:44:58,150 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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928]
[2024-11-24 00:44:58,202 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:44:58,215 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:44:58,226 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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928]
[2024-11-24 00:44:58,258 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:44:58,279 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:44:58,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58 WrapperNode
[2024-11-24 00:44:58,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:44:58,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:44:58,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:44:58,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:44:58,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,344 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116
[2024-11-24 00:44:58,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:44:58,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:44:58,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:44:58,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:44:58,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,388 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 00:44:58,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,401 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:44:58,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:44:58,428 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:44:58,428 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:44:58,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (1/1) ...
[2024-11-24 00:44:58,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:44:58,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:44:58,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:44:58,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:44:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:44:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-24 00:44:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-24 00:44:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:44:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:44:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:44:58,630 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:44:58,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:44:59,062 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live.
[2024-11-24 00:44:59,062 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:44:59,075 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:44:59,076 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-24 00:44:59,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:44:59 BoogieIcfgContainer
[2024-11-24 00:44:59,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:44:59,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:44:59,080 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:44:59,086 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:44:59,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:44:57" (1/3) ...
[2024-11-24 00:44:59,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:44:59, skipping insertion in model container
[2024-11-24 00:44:59,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:44:58" (2/3) ...
[2024-11-24 00:44:59,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:44:59, skipping insertion in model container
[2024-11-24 00:44:59,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:44:59" (3/3) ...
[2024-11-24 00:44:59,090 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-64.i
[2024-11-24 00:44:59,110 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:44:59,112 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-64.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 00:44:59,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:44:59,210 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;@287fef76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:44:59,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 00:44:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-24 00:44:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-11-24 00:44:59,229 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:44:59,230 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:44:59,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:44:59,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:44:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash -531792171, now seen corresponding path program 1 times
[2024-11-24 00:44:59,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:44:59,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143871050]
[2024-11-24 00:44:59,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:44:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:44:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:44:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-24 00:44:59,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:44:59,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143871050]
[2024-11-24 00:44:59,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143871050] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:44:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948953537]
[2024-11-24 00:44:59,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:44:59,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:44:59,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:44:59,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:44:59,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:44:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:44:59,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-24 00:44:59,793 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:44:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-24 00:44:59,817 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:44:59,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948953537] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:44:59,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:44:59,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-24 00:44:59,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065943065]
[2024-11-24 00:44:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:44:59,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 00:44:59,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:44:59,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 00:44:59,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 00:44:59,860 INFO L87 Difference]: Start difference. First operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:44:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:44:59,899 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions.
[2024-11-24 00:44:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 00:44:59,903 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82
[2024-11-24 00:44:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:44:59,911 INFO L225 Difference]: With dead ends: 99
[2024-11-24 00:44:59,911 INFO L226 Difference]: Without dead ends: 48
[2024-11-24 00:44:59,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 00:44:59,919 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:44:59,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:44:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-11-24 00:44:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2024-11-24 00:44:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-24 00:44:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions.
[2024-11-24 00:44:59,981 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 82
[2024-11-24 00:44:59,983 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:44:59,983 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions.
[2024-11-24 00:44:59,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:44:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions.
[2024-11-24 00:44:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-11-24 00:44:59,990 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:44:59,991 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:00,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 00:45:00,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-24 00:45:00,196 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:00,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1140243371, now seen corresponding path program 1 times
[2024-11-24 00:45:00,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:45:00,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103130656]
[2024-11-24 00:45:00,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:45:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:01,539 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-24 00:45:01,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:45:01,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103130656]
[2024-11-24 00:45:01,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103130656] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:45:01,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:45:01,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:45:01,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517352561]
[2024-11-24 00:45:01,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:45:01,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:45:01,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:45:01,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:45:01,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:45:01,550 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-24 00:45:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:45:02,098 INFO L93 Difference]: Finished difference Result 153 states and 216 transitions.
[2024-11-24 00:45:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:45:02,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 82
[2024-11-24 00:45:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:45:02,102 INFO L225 Difference]: With dead ends: 153
[2024-11-24 00:45:02,105 INFO L226 Difference]: Without dead ends: 108
[2024-11-24 00:45:02,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:45:02,107 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 137 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:45:02,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 196 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 00:45:02,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2024-11-24 00:45:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 78.
[2024-11-24 00:45:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-24 00:45:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions.
[2024-11-24 00:45:02,163 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 82
[2024-11-24 00:45:02,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:45:02,164 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions.
[2024-11-24 00:45:02,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-24 00:45:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions.
[2024-11-24 00:45:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2024-11-24 00:45:02,171 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:45:02,172 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:02,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:45:02,172 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:02,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash -385616337, now seen corresponding path program 1 times
[2024-11-24 00:45:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:45:02,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230108902]
[2024-11-24 00:45:02,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:02,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:45:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-24 00:45:02,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191886036]
[2024-11-24 00:45:02,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:02,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:45:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:45:02,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:45:02,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:45:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:02,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:02,508 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:45:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-24 00:45:03,054 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:45:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-24 00:45:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:45:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230108902]
[2024-11-24 00:45:03,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-24 00:45:03,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191886036]
[2024-11-24 00:45:03,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191886036] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:45:03,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:45:03,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2024-11-24 00:45:03,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392921317]
[2024-11-24 00:45:03,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:45:03,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:45:03,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:45:03,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:45:03,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:45:03,386 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-24 00:45:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:45:03,909 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions.
[2024-11-24 00:45:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:45:03,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83
[2024-11-24 00:45:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:45:03,918 INFO L225 Difference]: With dead ends: 147
[2024-11-24 00:45:03,919 INFO L226 Difference]: Without dead ends: 88
[2024-11-24 00:45:03,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 00:45:03,920 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:45:03,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 146 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 00:45:03,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-11-24 00:45:03,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 78.
[2024-11-24 00:45:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 54 states have internal predecessors, (66), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-24 00:45:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions.
[2024-11-24 00:45:03,964 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 83
[2024-11-24 00:45:03,965 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:45:03,965 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions.
[2024-11-24 00:45:03,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-24 00:45:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions.
[2024-11-24 00:45:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2024-11-24 00:45:03,967 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:45:03,970 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:03,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 00:45:04,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:45:04,175 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:04,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1389391025, now seen corresponding path program 1 times
[2024-11-24 00:45:04,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:45:04,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102791211]
[2024-11-24 00:45:04,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:45:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-24 00:45:04,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292527782]
[2024-11-24 00:45:04,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:04,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:45:04,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:45:04,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:45:04,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:45:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 00:45:04,378 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 00:45:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 00:45:04,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 00:45:04,497 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 00:45:04,499 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-24 00:45:04,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-24 00:45:04,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:45:04,706 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-24 00:45:04,776 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 00:45:04,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:45:04 BoogieIcfgContainer
[2024-11-24 00:45:04,782 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 00:45:04,783 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 00:45:04,783 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 00:45:04,784 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 00:45:04,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:44:59" (3/4) ...
[2024-11-24 00:45:04,788 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-24 00:45:04,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 00:45:04,791 INFO L158 Benchmark]: Toolchain (without parser) took 6851.54ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.7MB in the beginning and 176.5MB in the end (delta: -82.8MB). Peak memory consumption was 148.2MB. Max. memory is 16.1GB.
[2024-11-24 00:45:04,791 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:45:04,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.25ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 81.0MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 00:45:04,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.44ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 00:45:04,794 INFO L158 Benchmark]: Boogie Preprocessor took 81.98ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 74.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:45:04,795 INFO L158 Benchmark]: RCFGBuilder took 648.94ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 56.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:45:04,795 INFO L158 Benchmark]: TraceAbstraction took 5702.92ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.0MB in the beginning and 176.5MB in the end (delta: -120.5MB). Peak memory consumption was 114.6MB. Max. memory is 16.1GB.
[2024-11-24 00:45:04,795 INFO L158 Benchmark]: Witness Printer took 6.81ms. Allocated memory is still 352.3MB. Free memory was 176.5MB in the beginning and 176.5MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:45:04,799 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 340.25ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 81.0MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 62.44ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 81.98ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 74.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 648.94ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 56.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 5702.92ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.0MB in the beginning and 176.5MB in the end (delta: -120.5MB). Peak memory consumption was 114.6MB. Max. memory is 16.1GB.
* Witness Printer took 6.81ms. Allocated memory is still 352.3MB. Free memory was 176.5MB in the beginning and 176.5MB in the end (delta: 18.0kB). 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: 19]: 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 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 64, overapproximation of someBinaryDOUBLEComparisonOperation at line 82.
Possible FailurePath:
[L21] unsigned char isInitial = 0;
[L22] double var_1_1 = 0.9;
[L23] unsigned long int var_1_3 = 2941876006;
[L24] double var_1_5 = 127.422;
[L25] unsigned short int var_1_6 = 10;
[L26] unsigned char var_1_7 = 1;
[L27] unsigned long int var_1_9 = 4;
[L28] unsigned short int var_1_11 = 44699;
[L29] signed short int var_1_13 = 2;
[L30] unsigned char var_1_15 = 0;
[L31] unsigned char var_1_16 = 16;
[L32] float var_1_17 = 8.125;
VAL [isInitial=0, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2941876006, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L86] isInitial = 1
[L87] FCALL initially()
[L89] FCALL updateLastVariables()
[L90] CALL updateVariables()
[L60] var_1_3 = __VERIFIER_nondet_ulong()
[L61] CALL assume_abort_if_not(var_1_3 >= 2147483647)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L61] RET assume_abort_if_not(var_1_3 >= 2147483647)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L62] CALL assume_abort_if_not(var_1_3 <= 4294967295)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L62] RET assume_abort_if_not(var_1_3 <= 4294967295)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4]
[L63] var_1_5 = __VERIFIER_nondet_double()
[L64] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F ))
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4]
[L64] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F ))
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4]
[L65] var_1_7 = __VERIFIER_nondet_uchar()
[L66] CALL assume_abort_if_not(var_1_7 >= 0)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4]
[L66] RET assume_abort_if_not(var_1_7 >= 0)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4]
[L67] CALL assume_abort_if_not(var_1_7 <= 1)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4]
[L67] RET assume_abort_if_not(var_1_7 <= 1)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4]
[L68] var_1_9 = __VERIFIER_nondet_ulong()
[L69] CALL assume_abort_if_not(var_1_9 >= 0)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0]
[L69] RET assume_abort_if_not(var_1_9 >= 0)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0]
[L70] CALL assume_abort_if_not(var_1_9 <= 4294967295)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0]
[L70] RET assume_abort_if_not(var_1_9 <= 4294967295)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0]
[L71] CALL assume_abort_if_not(var_1_9 != 0)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L71] RET assume_abort_if_not(var_1_9 != 0)
VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L72] var_1_11 = __VERIFIER_nondet_ushort()
[L73] CALL assume_abort_if_not(var_1_11 >= 32767)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L73] RET assume_abort_if_not(var_1_11 >= 32767)
VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L74] CALL assume_abort_if_not(var_1_11 <= 65534)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L74] RET assume_abort_if_not(var_1_11 <= 65534)
VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L75] var_1_16 = __VERIFIER_nondet_uchar()
[L76] CALL assume_abort_if_not(var_1_16 >= 0)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L76] RET assume_abort_if_not(var_1_16 >= 0)
VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L77] CALL assume_abort_if_not(var_1_16 <= 254)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L77] RET assume_abort_if_not(var_1_16 <= 254)
VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1]
[L90] RET updateVariables()
[L91] CALL step()
[L36] var_1_15 = var_1_16
[L37] var_1_17 = var_1_5
VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1]
[L38] EXPR var_1_15 & var_1_15
VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1]
[L38] unsigned long int stepLocal_2 = var_1_3 * (var_1_15 & var_1_15);
[L39] COND FALSE !(\read(var_1_7))
[L46] var_1_6 = (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1)
VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
[L48] var_1_13 = var_1_15
[L49] signed long int stepLocal_1 = var_1_6 * var_1_15;
[L50] unsigned char stepLocal_0 = var_1_15;
VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
[L51] COND TRUE stepLocal_0 <= (var_1_3 - var_1_6)
VAL [isInitial=1, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
[L52] COND FALSE !(var_1_3 < stepLocal_1)
[L55] var_1_1 = var_1_5
VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
[L91] RET step()
[L92] CALL, EXPR property()
[L82] EXPR ((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1))))
VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
[L82-L83] return (((((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1))))) && (var_1_13 == ((signed short int) var_1_15))) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((float) var_1_5))
;
[L92] RET, EXPR property()
[L92] CALL __VERIFIER_assert(property())
[L19] COND TRUE !(cond)
VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
[L19] reach_error()
VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 409 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 204 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 407 ConstructedInterpolants, 3 QuantifiedInterpolants, 881 SizeOfPredicates, 4 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 1265/1320 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 00:45:04,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:45:08,187 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:45:08,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-24 00:45:08,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:45:08,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:45:08,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:45:08,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:45:08,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:45:08,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:45:08,419 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:45:08,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:45:08,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:45:08,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:45:08,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:45:08,420 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:45:08,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:45:08,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:45:08,421 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:45:08,421 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:45:08,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:45:08,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:45:08,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:45:08,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:45:08,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 00:45:08,422 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-24 00:45:08,422 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-24 00:45:08,422 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:45:08,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 00:45:08,423 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:45:08,423 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:45:08,423 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:45:08,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:45:08,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:45:08,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:45:08,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:45:08,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:45:08,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:45:08,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:45:08,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:45:08,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:45:08,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:45:08,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:45:08,425 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 00:45:08,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:45:08,426 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-24 00:45:08,426 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-24 00:45:08,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:45:08,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:45:08,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:45:08,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:45:08,426 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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 -> 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a
[2024-11-24 00:45:08,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:45:08,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:45:08,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:45:08,879 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:45:08,879 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:45:08,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i
[2024-11-24 00:45:12,669 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/bea06ba31/eaa494db5e514656975e37c15f5247ae/FLAG532902839
[2024-11-24 00:45:12,961 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:45:12,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i
[2024-11-24 00:45:12,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/bea06ba31/eaa494db5e514656975e37c15f5247ae/FLAG532902839
[2024-11-24 00:45:13,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/data/bea06ba31/eaa494db5e514656975e37c15f5247ae
[2024-11-24 00:45:13,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:45:13,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:45:13,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:45:13,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:45:13,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:45:13,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e62410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13, skipping insertion in model container
[2024-11-24 00:45:13,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,064 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:45:13,307 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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928]
[2024-11-24 00:45:13,396 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:45:13,423 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:45:13,439 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_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928]
[2024-11-24 00:45:13,483 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:45:13,518 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:45:13,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13 WrapperNode
[2024-11-24 00:45:13,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:45:13,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:45:13,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:45:13,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:45:13,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,590 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89
[2024-11-24 00:45:13,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:45:13,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:45:13,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:45:13,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:45:13,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,627 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 00:45:13,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,644 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:45:13,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:45:13,670 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:45:13,670 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:45:13,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (1/1) ...
[2024-11-24 00:45:13,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:45:13,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:45:13,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:45:13,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:45:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:45:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-24 00:45:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-24 00:45:13,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-24 00:45:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:45:13,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:45:13,871 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:45:13,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:45:14,628 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-24 00:45:14,628 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:45:14,642 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:45:14,643 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-24 00:45:14,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:14 BoogieIcfgContainer
[2024-11-24 00:45:14,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:45:14,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:45:14,647 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:45:14,655 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:45:14,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:45:13" (1/3) ...
[2024-11-24 00:45:14,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db9a7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:14, skipping insertion in model container
[2024-11-24 00:45:14,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:13" (2/3) ...
[2024-11-24 00:45:14,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db9a7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:14, skipping insertion in model container
[2024-11-24 00:45:14,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:14" (3/3) ...
[2024-11-24 00:45:14,659 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-64.i
[2024-11-24 00:45:14,677 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:45:14,679 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-64.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 00:45:14,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:45:14,769 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;@493d284b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:45:14,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 00:45:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-24 00:45:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-24 00:45:14,786 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:45:14,788 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:14,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:14,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:14,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1855080281, now seen corresponding path program 1 times
[2024-11-24 00:45:14,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:45:14,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340608937]
[2024-11-24 00:45:14,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:14,808 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 00:45:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 00:45:14,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:14,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:15,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:15,140 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:45:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked.
[2024-11-24 00:45:15,206 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:45:15,210 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:45:15,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340608937]
[2024-11-24 00:45:15,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340608937] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:45:15,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:45:15,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:45:15,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116006106]
[2024-11-24 00:45:15,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:45:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 00:45:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:45:15,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 00:45:15,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 00:45:15,255 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:45:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:45:15,282 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions.
[2024-11-24 00:45:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 00:45:15,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78
[2024-11-24 00:45:15,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:45:15,292 INFO L225 Difference]: With dead ends: 77
[2024-11-24 00:45:15,292 INFO L226 Difference]: Without dead ends: 38
[2024-11-24 00:45:15,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 00:45:15,300 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:45:15,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:45:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2024-11-24 00:45:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2024-11-24 00:45:15,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-24 00:45:15,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions.
[2024-11-24 00:45:15,358 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 78
[2024-11-24 00:45:15,359 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:45:15,359 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions.
[2024-11-24 00:45:15,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:45:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions.
[2024-11-24 00:45:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-24 00:45:15,365 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:45:15,368 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:15,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-24 00:45:15,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:15,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:15,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1041026265, now seen corresponding path program 1 times
[2024-11-24 00:45:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:45:15,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922132908]
[2024-11-24 00:45:15,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:15,571 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 00:45:15,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 00:45:15,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:15,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:15,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:15,926 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:45:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-24 00:45:16,497 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:45:16,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:45:16,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922132908]
[2024-11-24 00:45:16,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922132908] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:45:16,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1795076925]
[2024-11-24 00:45:16,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:16,684 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:45:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:45:16,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:45:16,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-24 00:45:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:17,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:17,590 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:45:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-24 00:45:18,010 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:45:18,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1795076925] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:45:18,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:45:18,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2024-11-24 00:45:18,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311321080]
[2024-11-24 00:45:18,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:45:18,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 00:45:18,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:45:18,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 00:45:18,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:45:18,087 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:45:19,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:45:19,488 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions.
[2024-11-24 00:45:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 00:45:19,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78
[2024-11-24 00:45:19,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:45:19,503 INFO L225 Difference]: With dead ends: 90
[2024-11-24 00:45:19,503 INFO L226 Difference]: Without dead ends: 55
[2024-11-24 00:45:19,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2024-11-24 00:45:19,505 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:45:19,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 89 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-24 00:45:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2024-11-24 00:45:19,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42.
[2024-11-24 00:45:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-24 00:45:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions.
[2024-11-24 00:45:19,520 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 78
[2024-11-24 00:45:19,521 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:45:19,521 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions.
[2024-11-24 00:45:19,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:45:19,522 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions.
[2024-11-24 00:45:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-24 00:45:19,524 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:45:19,525 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:19,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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)] Forceful destruction successful, exit code 0
[2024-11-24 00:45:19,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-24 00:45:19,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt
[2024-11-24 00:45:19,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:19,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:19,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1971482828, now seen corresponding path program 1 times
[2024-11-24 00:45:19,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:45:19,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654057489]
[2024-11-24 00:45:19,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:19,930 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 00:45:19,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 00:45:19,932 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:19,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 (5)] Waiting until timeout for monitored process
[2024-11-24 00:45:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:20,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:20,185 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:45:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-24 00:45:20,764 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:45:21,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:45:21,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654057489]
[2024-11-24 00:45:21,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654057489] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:45:21,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1052128955]
[2024-11-24 00:45:21,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:21,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:45:21,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:45:21,041 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:45:21,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-24 00:45:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:21,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:21,725 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:45:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-24 00:45:22,130 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:45:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1052128955] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:45:22,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:45:22,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2024-11-24 00:45:22,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14270956]
[2024-11-24 00:45:22,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:45:22,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 00:45:22,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:45:22,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 00:45:22,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:45:22,251 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:45:24,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:45:24,406 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions.
[2024-11-24 00:45:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 00:45:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79
[2024-11-24 00:45:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:45:24,420 INFO L225 Difference]: With dead ends: 83
[2024-11-24 00:45:24,420 INFO L226 Difference]: Without dead ends: 44
[2024-11-24 00:45:24,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-11-24 00:45:24,422 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:45:24,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-24 00:45:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-11-24 00:45:24,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42.
[2024-11-24 00:45:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-24 00:45:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions.
[2024-11-24 00:45:24,433 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 79
[2024-11-24 00:45:24,434 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:45:24,434 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions.
[2024-11-24 00:45:24,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-24 00:45:24,435 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions.
[2024-11-24 00:45:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-24 00:45:24,437 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:45:24,437 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:45:24,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0
[2024-11-24 00:45:24,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 (5)] Forceful destruction successful, exit code 0
[2024-11-24 00:45:24,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:24,838 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:45:24,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:45:24,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1973329870, now seen corresponding path program 1 times
[2024-11-24 00:45:24,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:45:24,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488567957]
[2024-11-24 00:45:24,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:45:24,840 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 00:45:24,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 00:45:24,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:45:24,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 (7)] Waiting until timeout for monitored process
[2024-11-24 00:45:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:45:25,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 00:45:25,044 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:46:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked.
[2024-11-24 00:46:00,333 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:47:34,102 WARN L286 SmtUtils]: Spent 16.56s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-24 00:48:31,657 WARN L286 SmtUtils]: Spent 13.04s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-24 00:49:50,518 WARN L286 SmtUtils]: Spent 11.45s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-24 00:50:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-24 00:50:45,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:50:45,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488567957]
[2024-11-24 00:50:45,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488567957] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:50:45,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 00:50:45,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21
[2024-11-24 00:50:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904989503]
[2024-11-24 00:50:45,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:50:45,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-24 00:50:45,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 00:50:45,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-24 00:50:45,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420
[2024-11-24 00:50:45,828 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24)
[2024-11-24 00:50:55,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:02,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:10,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:12,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:14,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:16,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:18,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:19,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:22,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:23,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:25,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:27,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:29,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:30,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:35,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:40,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:42,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:45,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:47,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:50,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:51:59,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:52:14,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:52:25,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:52:30,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:52:36,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:52:45,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:52:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:52:48,009 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions.
[2024-11-24 00:52:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-24 00:52:48,016 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 79
[2024-11-24 00:52:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:52:48,018 INFO L225 Difference]: With dead ends: 83
[2024-11-24 00:52:48,018 INFO L226 Difference]: Without dead ends: 81
[2024-11-24 00:52:48,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 226.6s TimeCoverageRelationStatistics Valid=267, Invalid=725, Unknown=0, NotChecked=0, Total=992
[2024-11-24 00:52:48,020 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 135 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:52:48,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 217 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 69.2s Time]
[2024-11-24 00:52:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2024-11-24 00:52:48,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64.
[2024-11-24 00:52:48,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-24 00:52:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions.
[2024-11-24 00:52:48,035 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 79
[2024-11-24 00:52:48,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:52:48,036 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions.
[2024-11-24 00:52:48,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24)
[2024-11-24 00:52:48,036 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions.
[2024-11-24 00:52:48,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-11-24 00:52:48,038 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:52:48,038 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:52:48,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 (7)] Ended with exit code 0
[2024-11-24 00:52:48,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:52:48,239 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:52:48,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:52:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash 493310322, now seen corresponding path program 1 times
[2024-11-24 00:52:48,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 00:52:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202129287]
[2024-11-24 00:52:48,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:52:48,240 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 00:52:48,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 00:52:48,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 00:52:48,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/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 (8)] Waiting until timeout for monitored process
[2024-11-24 00:52:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:52:48,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-24 00:52:48,649 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:53:48,497 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 170 proven. 36 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2024-11-24 00:53:48,497 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:54:53,831 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-24 00:57:18,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 00:57:18,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202129287]
[2024-11-24 00:57:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202129287] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:57:18,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1691931268]
[2024-11-24 00:57:18,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:18,442 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 00:57:18,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 00:57:18,444 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 00:57:18,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91a9bfb-b46e-469c-9cfd-fe3b1ea3191f/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process
[2024-11-24 00:57:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:18,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-24 00:57:18,926 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:58:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked.
[2024-11-24 00:58:53,205 INFO L312 TraceCheckSpWp]: Computing backward predicates...