./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.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_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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_42120551-0030-40cf-8a00-4b1030c50cc6/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 f509ea043fca36ef43b47e8e4046575373359a8f764b4f176c2773bac324a507
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 02:07:25,224 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 02:07:25,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 02:07:25,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 02:07:25,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 02:07:25,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 02:07:25,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 02:07:25,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 02:07:25,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 02:07:25,360 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 02:07:25,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 02:07:25,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 02:07:25,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 02:07:25,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 02:07:25,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 02:07:25,362 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 02:07:25,364 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 02:07:25,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 02:07:25,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 02:07:25,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:07:25,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:07:25,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 02:07:25,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 02:07:25,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 02:07:25,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 02:07:25,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 02:07:25,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 02:07:25,366 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_42120551-0030-40cf-8a00-4b1030c50cc6/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 -> f509ea043fca36ef43b47e8e4046575373359a8f764b4f176c2773bac324a507
[2024-11-24 02:07:25,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 02:07:25,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 02:07:25,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 02:07:25,702 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 02:07:25,702 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 02:07:25,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i
[2024-11-24 02:07:28,684 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/5c30037fd/b3593ac307e84a6e9c1bf12caee5dcfc/FLAGba62a4222
[2024-11-24 02:07:28,955 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 02:07:28,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i
[2024-11-24 02:07:28,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/5c30037fd/b3593ac307e84a6e9c1bf12caee5dcfc/FLAGba62a4222
[2024-11-24 02:07:28,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/5c30037fd/b3593ac307e84a6e9c1bf12caee5dcfc
[2024-11-24 02:07:28,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 02:07:28,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 02:07:28,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 02:07:28,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 02:07:29,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 02:07:29,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:07:28" (1/1) ...
[2024-11-24 02:07:29,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d24fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29, skipping insertion in model container
[2024-11-24 02:07:29,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:07:28" (1/1) ...
[2024-11-24 02:07:29,036 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 02:07:29,214 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_42120551-0030-40cf-8a00-4b1030c50cc6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i[915,928]
[2024-11-24 02:07:29,301 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 02:07:29,317 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 02:07:29,335 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_42120551-0030-40cf-8a00-4b1030c50cc6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i[915,928]
[2024-11-24 02:07:29,391 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 02:07:29,408 INFO L204 MainTranslator]: Completed translation
[2024-11-24 02:07:29,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29 WrapperNode
[2024-11-24 02:07:29,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 02:07:29,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 02:07:29,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 02:07:29,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 02:07:29,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,482 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 264
[2024-11-24 02:07:29,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 02:07:29,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 02:07:29,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 02:07:29,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 02:07:29,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,521 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 02:07:29,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 02:07:29,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 02:07:29,555 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 02:07:29,555 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 02:07:29,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (1/1) ...
[2024-11-24 02:07:29,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:07:29,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 02:07:29,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 02:07:29,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 02:07:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 02:07:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-24 02:07:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-24 02:07:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 02:07:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 02:07:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 02:07:29,733 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 02:07:29,736 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 02:07:30,591 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-24 02:07:30,592 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 02:07:30,610 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 02:07:30,612 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 02:07:30,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:07:30 BoogieIcfgContainer
[2024-11-24 02:07:30,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 02:07:30,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 02:07:30,616 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 02:07:30,623 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 02:07:30,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:07:28" (1/3) ...
[2024-11-24 02:07:30,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfe009c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:07:30, skipping insertion in model container
[2024-11-24 02:07:30,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:29" (2/3) ...
[2024-11-24 02:07:30,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfe009c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:07:30, skipping insertion in model container
[2024-11-24 02:07:30,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:07:30" (3/3) ...
[2024-11-24 02:07:30,629 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-1.i
[2024-11-24 02:07:30,649 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 02:07:30,651 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_100-1loop_file-1.i that has 2 procedures, 117 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 02:07:30,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 02:07:30,761 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;@219dc2c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 02:07:30,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 02:07:30,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 82 states have internal predecessors, (118), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 02:07:30,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2024-11-24 02:07:30,791 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:07:30,792 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 02:07:30,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:07:30,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:07:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash 173243309, now seen corresponding path program 1 times
[2024-11-24 02:07:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:07:30,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026391004]
[2024-11-24 02:07:30,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:07:30,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:07:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:07:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked.
[2024-11-24 02:07:31,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:07:31,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026391004]
[2024-11-24 02:07:31,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026391004] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:07:31,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515378884]
[2024-11-24 02:07:31,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:07:31,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 02:07:31,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 02:07:31,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 02:07:31,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 02:07:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:07:31,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-24 02:07:31,666 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:07:31,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked.
[2024-11-24 02:07:31,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 02:07:31,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515378884] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:07:31,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 02:07:31,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-24 02:07:31,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244959759]
[2024-11-24 02:07:31,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:07:31,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 02:07:31,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:07:31,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 02:07:31,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 02:07:31,752 INFO L87 Difference]: Start difference. First operand has 117 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 82 states have internal predecessors, (118), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-24 02:07:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:07:31,821 INFO L93 Difference]: Finished difference Result 231 states and 398 transitions.
[2024-11-24 02:07:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 02:07:31,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 214
[2024-11-24 02:07:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:07:31,837 INFO L225 Difference]: With dead ends: 231
[2024-11-24 02:07:31,838 INFO L226 Difference]: Without dead ends: 113
[2024-11-24 02:07:31,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 215 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 02:07:31,848 INFO L435 NwaCegarLoop]: 181 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, 181 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 02:07:31,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:07:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2024-11-24 02:07:31,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2024-11-24 02:07:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 78 states have (on average 1.4230769230769231) internal successors, (111), 78 states have internal predecessors, (111), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 02:07:31,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 177 transitions.
[2024-11-24 02:07:31,904 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 177 transitions. Word has length 214
[2024-11-24 02:07:31,904 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:07:31,904 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 177 transitions.
[2024-11-24 02:07:31,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-24 02:07:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 177 transitions.
[2024-11-24 02:07:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2024-11-24 02:07:31,909 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:07:31,910 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 02:07:31,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 02:07:32,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-24 02:07:32,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:07:32,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:07:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2092900161, now seen corresponding path program 1 times
[2024-11-24 02:07:32,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:07:32,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278289615]
[2024-11-24 02:07:32,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:07:32,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:07:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:07:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-24 02:07:32,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:07:32,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278289615]
[2024-11-24 02:07:32,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278289615] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:07:32,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:07:32,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 02:07:32,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047764290]
[2024-11-24 02:07:32,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:07:32,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 02:07:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:07:32,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 02:07:32,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:07:32,869 INFO L87 Difference]: Start difference. First operand 113 states and 177 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-24 02:07:32,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:07:32,952 INFO L93 Difference]: Finished difference Result 333 states and 525 transitions.
[2024-11-24 02:07:32,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 02:07:32,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214
[2024-11-24 02:07:32,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:07:32,957 INFO L225 Difference]: With dead ends: 333
[2024-11-24 02:07:32,957 INFO L226 Difference]: Without dead ends: 223
[2024-11-24 02:07:32,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 02:07:32,959 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 105 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 02:07:32,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 614 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:07:32,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states.
[2024-11-24 02:07:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221.
[2024-11-24 02:07:33,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 152 states have (on average 1.4276315789473684) internal successors, (217), 152 states have internal predecessors, (217), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-24 02:07:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 349 transitions.
[2024-11-24 02:07:33,015 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 349 transitions. Word has length 214
[2024-11-24 02:07:33,017 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:07:33,018 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 349 transitions.
[2024-11-24 02:07:33,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-24 02:07:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 349 transitions.
[2024-11-24 02:07:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-11-24 02:07:33,026 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:07:33,026 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 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 02:07:33,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 02:07:33,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:07:33,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:07:33,027 INFO L85 PathProgramCache]: Analyzing trace with hash -971571274, now seen corresponding path program 1 times
[2024-11-24 02:07:33,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:07:33,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943423564]
[2024-11-24 02:07:33,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:07:33,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:07:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:07:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked.
[2024-11-24 02:07:37,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:07:37,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943423564]
[2024-11-24 02:07:37,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943423564] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:07:37,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810860851]
[2024-11-24 02:07:37,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:07:37,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 02:07:37,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 02:07:37,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 02:07:37,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 02:07:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:07:37,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 55 conjuncts are in the unsatisfiable core
[2024-11-24 02:07:37,435 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:07:43,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1558 proven. 204 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked.
[2024-11-24 02:07:43,341 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 02:08:06,960 WARN L286 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 50 DAG size of output: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-24 02:09:32,472 WARN L286 SmtUtils]: Spent 23.66s on a formula simplification. DAG size of input: 132 DAG size of output: 118 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-24 02:09:46,497 WARN L286 SmtUtils]: Spent 13.86s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-24 02:09:52,531 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-24 02:10:10,561 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-24 02:10:14,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810860851] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:10:14,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 02:10:14,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 31] total 39
[2024-11-24 02:10:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789709625]
[2024-11-24 02:10:14,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 02:10:14,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2024-11-24 02:10:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:10:14,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2024-11-24 02:10:14,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1952, Unknown=1, NotChecked=0, Total=2256
[2024-11-24 02:10:14,914 INFO L87 Difference]: Start difference. First operand 221 states and 349 transitions. Second operand has 39 states, 39 states have (on average 3.128205128205128) internal successors, (122), 36 states have internal predecessors, (122), 10 states have call successors, (66), 9 states have call predecessors, (66), 14 states have return successors, (66), 10 states have call predecessors, (66), 10 states have call successors, (66)
[2024-11-24 02:10:56,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:10:56,969 INFO L93 Difference]: Finished difference Result 1960 states and 2900 transitions.
[2024-11-24 02:10:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states.
[2024-11-24 02:10:56,971 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.128205128205128) internal successors, (122), 36 states have internal predecessors, (122), 10 states have call successors, (66), 9 states have call predecessors, (66), 14 states have return successors, (66), 10 states have call predecessors, (66), 10 states have call successors, (66) Word has length 215
[2024-11-24 02:10:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:10:56,992 INFO L225 Difference]: With dead ends: 1960
[2024-11-24 02:10:56,992 INFO L226 Difference]: Without dead ends: 1742
[2024-11-24 02:10:57,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9108 ImplicationChecksByTransitivity, 92.7s TimeCoverageRelationStatistics Valid=3625, Invalid=22780, Unknown=1, NotChecked=0, Total=26406
[2024-11-24 02:10:57,004 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 2283 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 5609 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 3497 SdHoareTripleChecker+Invalid, 6266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 5609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time
[2024-11-24 02:10:57,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 3497 Invalid, 6266 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [657 Valid, 5609 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time]
[2024-11-24 02:10:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states.
[2024-11-24 02:10:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 849.
[2024-11-24 02:10:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 626 states have (on average 1.4057507987220448) internal successors, (880), 630 states have internal predecessors, (880), 196 states have call successors, (196), 26 states have call predecessors, (196), 26 states have return successors, (196), 192 states have call predecessors, (196), 196 states have call successors, (196)
[2024-11-24 02:10:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1272 transitions.
[2024-11-24 02:10:57,205 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1272 transitions. Word has length 215
[2024-11-24 02:10:57,206 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:10:57,206 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1272 transitions.
[2024-11-24 02:10:57,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.128205128205128) internal successors, (122), 36 states have internal predecessors, (122), 10 states have call successors, (66), 9 states have call predecessors, (66), 14 states have return successors, (66), 10 states have call predecessors, (66), 10 states have call successors, (66)
[2024-11-24 02:10:57,207 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1272 transitions.
[2024-11-24 02:10:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-11-24 02:10:57,210 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:10:57,211 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 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 02:10:57,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 02:10:57,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 02:10:57,411 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:10:57,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:10:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1364598284, now seen corresponding path program 1 times
[2024-11-24 02:10:57,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:10:57,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146640927]
[2024-11-24 02:10:57,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:10:57,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:10:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:10:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-24 02:10:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:10:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146640927]
[2024-11-24 02:10:58,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146640927] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:10:58,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:10:58,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 02:10:58,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550670506]
[2024-11-24 02:10:58,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:10:58,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 02:10:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:10:58,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 02:10:58,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:10:58,026 INFO L87 Difference]: Start difference. First operand 849 states and 1272 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-24 02:10:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:10:59,000 INFO L93 Difference]: Finished difference Result 1344 states and 2029 transitions.
[2024-11-24 02:10:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 02:10:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 215
[2024-11-24 02:10:59,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:10:59,010 INFO L225 Difference]: With dead ends: 1344
[2024-11-24 02:10:59,011 INFO L226 Difference]: Without dead ends: 1175
[2024-11-24 02:10:59,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:10:59,013 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 334 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-24 02:10:59,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 751 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-24 02:10:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states.
[2024-11-24 02:10:59,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1024.
[2024-11-24 02:10:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 744 states have (on average 1.3991935483870968) internal successors, (1041), 749 states have internal predecessors, (1041), 250 states have call successors, (250), 29 states have call predecessors, (250), 29 states have return successors, (250), 245 states have call predecessors, (250), 250 states have call successors, (250)
[2024-11-24 02:10:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1541 transitions.
[2024-11-24 02:10:59,172 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1541 transitions. Word has length 215
[2024-11-24 02:10:59,195 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:10:59,195 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1541 transitions.
[2024-11-24 02:10:59,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-24 02:10:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1541 transitions.
[2024-11-24 02:10:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-11-24 02:10:59,199 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:10:59,199 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 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 02:10:59,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 02:10:59,200 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:10:59,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:10:59,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1099130873, now seen corresponding path program 1 times
[2024-11-24 02:10:59,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:10:59,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541358867]
[2024-11-24 02:10:59,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:10:59,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:10:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:11:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 261 proven. 225 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked.
[2024-11-24 02:11:06,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:11:06,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541358867]
[2024-11-24 02:11:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541358867] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:11:06,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577970768]
[2024-11-24 02:11:06,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:11:06,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 02:11:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 02:11:06,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 02:11:06,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 02:11:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:11:07,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-11-24 02:11:07,076 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:11:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1563 proven. 243 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked.
[2024-11-24 02:11:15,543 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 02:11:38,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577970768] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:11:38,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 02:11:38,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 40
[2024-11-24 02:11:38,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811306986]
[2024-11-24 02:11:38,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 02:11:38,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2024-11-24 02:11:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:11:38,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2024-11-24 02:11:38,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=2039, Unknown=6, NotChecked=0, Total=2352
[2024-11-24 02:11:38,754 INFO L87 Difference]: Start difference. First operand 1024 states and 1541 transitions. Second operand has 40 states, 39 states have (on average 3.358974358974359) internal successors, (131), 38 states have internal predecessors, (131), 16 states have call successors, (66), 8 states have call predecessors, (66), 14 states have return successors, (66), 16 states have call predecessors, (66), 16 states have call successors, (66)
[2024-11-24 02:11:47,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:01,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:06,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:14,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:23,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:27,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:31,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:39,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:43,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:47,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:51,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:12:57,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:01,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:09,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:15,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:19,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:23,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:27,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:31,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:35,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:40,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:44,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:48,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:52,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:13:56,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:00,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:04,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:08,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:12,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:16,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:20,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:24,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:28,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:33,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:37,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:41,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:45,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:49,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:53,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:14:57,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:01,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:05,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:09,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:13,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:17,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:21,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:25,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:29,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:33,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:37,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-24 02:15:38,379 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-11-24 02:15:38,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-11-24 02:15:38,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2191 ImplicationChecksByTransitivity, 60.6s TimeCoverageRelationStatistics Valid=1565, Invalid=7171, Unknown=6, NotChecked=0, Total=8742
[2024-11-24 02:15:38,382 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 1415 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 213 mSolverCounterUnsat, 50 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 206.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 50 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.6s IncrementalHoareTripleChecker+Time
[2024-11-24 02:15:38,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 788 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1827 Invalid, 50 Unknown, 0 Unchecked, 208.6s Time]
[2024-11-24 02:15:38,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-24 02:15:38,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 02:15:38,584 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:388)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: java.io.IOException: Broken pipe
at java.base/java.io.FileOutputStream.writeBytes(Native Method)
at java.base/java.io.FileOutputStream.write(FileOutputStream.java:367)
at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125)
at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252)
at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246)
at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412)
at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214)
at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201)
at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262)
at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372)
at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175)
... 36 more
[2024-11-24 02:15:38,589 INFO L158 Benchmark]: Toolchain (without parser) took 489596.88ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 91.0MB in the beginning and 291.0MB in the end (delta: -199.9MB). Peak memory consumption was 215.6MB. Max. memory is 16.1GB.
[2024-11-24 02:15:38,590 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 02:15:38,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.49ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 74.5MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 02:15:38,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.26ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 69.4MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 02:15:38,590 INFO L158 Benchmark]: Boogie Preprocessor took 70.43ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 61.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 02:15:38,590 INFO L158 Benchmark]: RCFGBuilder took 1058.89ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 80.0MB in the end (delta: -18.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB.
[2024-11-24 02:15:38,591 INFO L158 Benchmark]: TraceAbstraction took 487973.07ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 79.4MB in the beginning and 291.0MB in the end (delta: -211.6MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB.
[2024-11-24 02:15:38,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 413.49ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 74.5MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 72.26ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 69.4MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 70.43ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 61.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 1058.89ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 80.0MB in the end (delta: -18.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 487973.07ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 79.4MB in the beginning and 291.0MB in the end (delta: -211.6MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
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_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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_42120551-0030-40cf-8a00-4b1030c50cc6/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 f509ea043fca36ef43b47e8e4046575373359a8f764b4f176c2773bac324a507
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 02:15:41,290 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 02:15:41,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-24 02:15:41,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 02:15:41,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 02:15:41,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 02:15:41,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 02:15:41,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 02:15:41,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 02:15:41,474 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 02:15:41,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 02:15:41,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 02:15:41,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 02:15:41,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 02:15:41,475 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 02:15:41,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 02:15:41,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 02:15:41,476 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 02:15:41,476 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 02:15:41,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 02:15:41,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 02:15:41,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 02:15:41,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 02:15:41,478 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 02:15:41,481 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-24 02:15:41,481 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-24 02:15:41,481 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 02:15:41,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 02:15:41,481 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 02:15:41,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:15:41,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 02:15:41,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 02:15:41,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:15:41,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 02:15:41,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 02:15:41,483 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 02:15:41,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 02:15:41,483 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-24 02:15:41,484 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-24 02:15:41,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 02:15:41,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 02:15:41,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 02:15:41,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 02:15:41,484 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_42120551-0030-40cf-8a00-4b1030c50cc6/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 -> f509ea043fca36ef43b47e8e4046575373359a8f764b4f176c2773bac324a507
[2024-11-24 02:15:41,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 02:15:41,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 02:15:41,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 02:15:41,933 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 02:15:41,934 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 02:15:41,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i
[2024-11-24 02:15:45,078 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/e58750f56/8d5f4ae98313476ba81deff79fddd1f0/FLAG75db310fe
[2024-11-24 02:15:45,425 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 02:15:45,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i
[2024-11-24 02:15:45,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/e58750f56/8d5f4ae98313476ba81deff79fddd1f0/FLAG75db310fe
[2024-11-24 02:15:45,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/data/e58750f56/8d5f4ae98313476ba81deff79fddd1f0
[2024-11-24 02:15:45,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 02:15:45,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 02:15:45,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 02:15:45,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 02:15:45,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 02:15:45,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71006ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45, skipping insertion in model container
[2024-11-24 02:15:45,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,493 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 02:15:45,658 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_42120551-0030-40cf-8a00-4b1030c50cc6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i[915,928]
[2024-11-24 02:15:45,775 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 02:15:45,792 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 02:15:45,802 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_42120551-0030-40cf-8a00-4b1030c50cc6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-1.i[915,928]
[2024-11-24 02:15:45,846 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 02:15:45,869 INFO L204 MainTranslator]: Completed translation
[2024-11-24 02:15:45,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45 WrapperNode
[2024-11-24 02:15:45,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 02:15:45,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 02:15:45,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 02:15:45,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 02:15:45,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,932 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 215
[2024-11-24 02:15:45,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 02:15:45,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 02:15:45,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 02:15:45,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 02:15:45,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,983 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 02:15:45,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:45,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,009 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 02:15:46,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 02:15:46,032 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 02:15:46,032 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 02:15:46,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (1/1) ...
[2024-11-24 02:15:46,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:15:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 02:15:46,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 02:15:46,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 02:15:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 02:15:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-24 02:15:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-24 02:15:46,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-24 02:15:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 02:15:46,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 02:15:46,237 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 02:15:46,241 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 02:16:12,226 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live.
[2024-11-24 02:16:12,227 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 02:16:12,241 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 02:16:12,241 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 02:16:12,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:16:12 BoogieIcfgContainer
[2024-11-24 02:16:12,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 02:16:12,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 02:16:12,244 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 02:16:12,249 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 02:16:12,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:15:45" (1/3) ...
[2024-11-24 02:16:12,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48435406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:16:12, skipping insertion in model container
[2024-11-24 02:16:12,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:15:45" (2/3) ...
[2024-11-24 02:16:12,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48435406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:16:12, skipping insertion in model container
[2024-11-24 02:16:12,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:16:12" (3/3) ...
[2024-11-24 02:16:12,252 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-1.i
[2024-11-24 02:16:12,269 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 02:16:12,271 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_100-1loop_file-1.i that has 2 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 02:16:12,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 02:16:12,355 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;@456c366a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 02:16:12,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 02:16:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 63 states have internal predecessors, (86), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 02:16:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2024-11-24 02:16:12,381 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:16:12,382 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 02:16:12,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:16:12,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:16:12,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1611491895, now seen corresponding path program 1 times
[2024-11-24 02:16:12,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 02:16:12,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73390797]
[2024-11-24 02:16:12,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:16:12,406 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 02:16:12,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 02:16:12,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:12,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:16:14,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-24 02:16:14,892 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:16:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 944 proven. 0 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked.
[2024-11-24 02:16:14,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 02:16:14,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 02:16:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73390797]
[2024-11-24 02:16:14,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73390797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:16:14,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:16:14,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 02:16:14,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162103529]
[2024-11-24 02:16:14,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:16:14,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 02:16:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 02:16:14,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 02:16:14,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 02:16:14,988 INFO L87 Difference]: Start difference. First operand has 98 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 63 states have internal predecessors, (86), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-24 02:16:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:16:15,053 INFO L93 Difference]: Finished difference Result 193 states and 334 transitions.
[2024-11-24 02:16:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 02:16:15,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 212
[2024-11-24 02:16:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:16:15,066 INFO L225 Difference]: With dead ends: 193
[2024-11-24 02:16:15,066 INFO L226 Difference]: Without dead ends: 94
[2024-11-24 02:16:15,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 211 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 02:16:15,079 INFO L435 NwaCegarLoop]: 149 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, 149 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 02:16:15,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:16:15,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-11-24 02:16:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2024-11-24 02:16:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-24 02:16:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 145 transitions.
[2024-11-24 02:16:15,159 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 145 transitions. Word has length 212
[2024-11-24 02:16:15,159 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:16:15,159 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 145 transitions.
[2024-11-24 02:16:15,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)
[2024-11-24 02:16:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 145 transitions.
[2024-11-24 02:16:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2024-11-24 02:16:15,169 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:16:15,170 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 02:16:15,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:15,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:15,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:16:15,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:16:15,373 INFO L85 PathProgramCache]: Analyzing trace with hash -321590327, now seen corresponding path program 1 times
[2024-11-24 02:16:15,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 02:16:15,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111794795]
[2024-11-24 02:16:15,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:16:15,378 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 02:16:15,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 02:16:15,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:15,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:16:17,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 02:16:17,863 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:16:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2024-11-24 02:16:27,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 02:16:27,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 02:16:27,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111794795]
[2024-11-24 02:16:27,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111794795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:16:27,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:16:27,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 02:16:27,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487119328]
[2024-11-24 02:16:27,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:16:27,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 02:16:27,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 02:16:27,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 02:16:27,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:16:27,459 INFO L87 Difference]: Start difference. First operand 94 states and 145 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-24 02:16:32,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-24 02:16:36,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-24 02:16:40,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-24 02:16:44,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-24 02:16:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:16:44,512 INFO L93 Difference]: Finished difference Result 276 states and 429 transitions.
[2024-11-24 02:16:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 02:16:44,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 212
[2024-11-24 02:16:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:16:44,768 INFO L225 Difference]: With dead ends: 276
[2024-11-24 02:16:44,768 INFO L226 Difference]: Without dead ends: 185
[2024-11-24 02:16:44,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 02:16:44,770 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 37 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time
[2024-11-24 02:16:44,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 455 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time]
[2024-11-24 02:16:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2024-11-24 02:16:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183.
[2024-11-24 02:16:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 114 states have (on average 1.3421052631578947) internal successors, (153), 114 states have internal predecessors, (153), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-24 02:16:44,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 285 transitions.
[2024-11-24 02:16:44,818 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 285 transitions. Word has length 212
[2024-11-24 02:16:44,819 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:16:44,819 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 285 transitions.
[2024-11-24 02:16:44,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2024-11-24 02:16:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 285 transitions.
[2024-11-24 02:16:44,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-11-24 02:16:44,824 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 02:16:44,824 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 02:16:44,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-24 02:16:45,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:45,025 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:16:45,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:16:45,026 INFO L85 PathProgramCache]: Analyzing trace with hash 305233496, now seen corresponding path program 1 times
[2024-11-24 02:16:45,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 02:16:45,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557264735]
[2024-11-24 02:16:45,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:16:45,030 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 02:16:45,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-24 02:16:45,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/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 02:16:45,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-24 02:16:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:16:47,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-24 02:16:47,669 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:17:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1576 proven. 180 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2024-11-24 02:17:35,290 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 02:18:10,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 02:18:10,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557264735]
[2024-11-24 02:18:10,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557264735] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:18:10,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [110995847]
[2024-11-24 02:18:10,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:18:10,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 02:18:10,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 02:18:10,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 02:18:10,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42120551-0030-40cf-8a00-4b1030c50cc6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-24 02:18:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:18:15,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-24 02:18:15,649 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 02:18:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1448 proven. 141 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked.
[2024-11-24 02:18:47,886 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 02:19:08,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [110995847] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 02:19:08,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 02:19:08,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 16] total 27
[2024-11-24 02:19:08,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856852798]
[2024-11-24 02:19:08,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 02:19:08,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-24 02:19:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 02:19:08,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-24 02:19:08,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1355, Unknown=0, NotChecked=0, Total=1560
[2024-11-24 02:19:08,946 INFO L87 Difference]: Start difference. First operand 183 states and 285 transitions. Second operand has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 27 states have internal predecessors, (111), 7 states have call successors, (49), 7 states have call predecessors, (49), 12 states have return successors, (50), 7 states have call predecessors, (50), 7 states have call successors, (50)
[2024-11-24 02:19:54,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:19:58,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:02,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:06,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:10,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:14,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:18,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:22,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:26,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:30,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:34,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:38,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:42,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:46,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:50,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:54,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:20:58,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:02,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:06,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:10,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:14,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:18,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:22,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:26,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:30,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:34,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:38,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:42,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:44,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:45,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-24 02:21:46,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]