./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd --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 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 13:00:03,886 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-13 13:00:04,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 13:00:04,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 13:00:04,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 13:00:04,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 13:00:04,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 13:00:04,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 13:00:04,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 13:00:04,051 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-13 13:00:04,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 13:00:04,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 13:00:04,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 13:00:04,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-13 13:00:04,054 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-13 13:00:04,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 13:00:04,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-13 13:00:04,055 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-13 13:00:04,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-13 13:00:04,055 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-13 13:00:04,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-13 13:00:04,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 13:00:04,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 13:00:04,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 13:00:04,056 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-13 13:00:04,056 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-13 13:00:04,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-13 13:00:04,056 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-13 13:00:04,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 13:00:04,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-13 13:00:04,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:00:04,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 13:00:04,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 13:00:04,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 13:00:04,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 13:00:04,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 13:00:04,059 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_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd
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 -> 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c
[2024-11-13 13:00:04,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 13:00:04,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 13:00:04,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 13:00:04,412 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-13 13:00:04,413 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-13 13:00:04,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i
Unable to find full path for "g++"
[2024-11-13 13:00:06,617 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-13 13:00:06,917 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-13 13:00:06,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i
[2024-11-13 13:00:06,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data/ce9e0d0de/b6d592844c3e45319f63ec4e779ac006/FLAG3e70b40e3
[2024-11-13 13:00:06,943 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data/ce9e0d0de/b6d592844c3e45319f63ec4e779ac006
[2024-11-13 13:00:06,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 13:00:06,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 13:00:06,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 13:00:06,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 13:00:06,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 13:00:06,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:06" (1/1) ...
[2024-11-13 13:00:06,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0e329c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:06, skipping insertion in model container
[2024-11-13 13:00:06,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:06" (1/1) ...
[2024-11-13 13:00:06,976 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-13 13:00:07,155 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_b337eb2e-b124-427f-9827-4d1d881fe28d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928]
[2024-11-13 13:00:07,208 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:00:07,220 INFO L200 MainTranslator]: Completed pre-run
[2024-11-13 13:00:07,235 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_b337eb2e-b124-427f-9827-4d1d881fe28d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928]
[2024-11-13 13:00:07,260 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:00:07,277 INFO L204 MainTranslator]: Completed translation
[2024-11-13 13:00:07,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07 WrapperNode
[2024-11-13 13:00:07,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 13:00:07,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 13:00:07,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 13:00:07,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 13:00:07,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,335 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126
[2024-11-13 13:00:07,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 13:00:07,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 13:00:07,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 13:00:07,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 13:00:07,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,368 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].
[2024-11-13 13:00:07,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 13:00:07,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 13:00:07,404 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 13:00:07,404 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-13 13:00:07,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (1/1) ...
[2024-11-13 13:00:07,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:00:07,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:00:07,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 13:00:07,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 13:00:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 13:00:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-13 13:00:07,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-13 13:00:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 13:00:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 13:00:07,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 13:00:07,623 INFO L238 CfgBuilder]: Building ICFG
[2024-11-13 13:00:07,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 13:00:08,039 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live.
[2024-11-13 13:00:08,040 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-13 13:00:08,059 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 13:00:08,060 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 13:00:08,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:08 BoogieIcfgContainer
[2024-11-13 13:00:08,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 13:00:08,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 13:00:08,067 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 13:00:08,073 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-13 13:00:08,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:00:06" (1/3) ...
[2024-11-13 13:00:08,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e15809c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:08, skipping insertion in model container
[2024-11-13 13:00:08,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:07" (2/3) ...
[2024-11-13 13:00:08,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e15809c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:08, skipping insertion in model container
[2024-11-13 13:00:08,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:08" (3/3) ...
[2024-11-13 13:00:08,076 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-31.i
[2024-11-13 13:00:08,098 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 13:00:08,102 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-31.i that has 2 procedures, 56 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 13:00:08,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 13:00:08,221 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;@c1b6248, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 13:00:08,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 13:00:08,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-13 13:00:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-13 13:00:08,240 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:08,240 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:08,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:08,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1667983499, now seen corresponding path program 1 times
[2024-11-13 13:00:08,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:08,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263216524]
[2024-11-13 13:00:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:08,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 13:00:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 13:00:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 13:00:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 13:00:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 13:00:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 13:00:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 13:00:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 13:00:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 13:00:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 13:00:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 13:00:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-13 13:00:08,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:08,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263216524]
[2024-11-13 13:00:08,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263216524] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:08,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:08,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:00:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868786153]
[2024-11-13 13:00:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:08,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-13 13:00:08,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-13 13:00:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 13:00:08,630 INFO L87 Difference]: Start difference. First operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:00:08,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:08,653 INFO L93 Difference]: Finished difference Result 105 states and 169 transitions.
[2024-11-13 13:00:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-13 13:00:08,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77
[2024-11-13 13:00:08,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:08,663 INFO L225 Difference]: With dead ends: 105
[2024-11-13 13:00:08,663 INFO L226 Difference]: Without dead ends: 52
[2024-11-13 13:00:08,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 13:00:08,670 INFO L432 NwaCegarLoop]: 75 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, 75 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
[2024-11-13 13:00:08,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 13:00:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2024-11-13 13:00:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2024-11-13 13:00:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.358974358974359) internal successors, (53), 39 states have internal predecessors, (53), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-13 13:00:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions.
[2024-11-13 13:00:08,736 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 77
[2024-11-13 13:00:08,740 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:08,740 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions.
[2024-11-13 13:00:08,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:00:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions.
[2024-11-13 13:00:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-13 13:00:08,746 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:08,746 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:08,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 13:00:08,747 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:08,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:08,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1171950903, now seen corresponding path program 1 times
[2024-11-13 13:00:08,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:08,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038198488]
[2024-11-13 13:00:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:08,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 13:00:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 13:00:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 13:00:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 13:00:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 13:00:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 13:00:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 13:00:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 13:00:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 13:00:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 13:00:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 13:00:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-13 13:00:10,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:10,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038198488]
[2024-11-13 13:00:10,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038198488] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:10,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:10,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 13:00:10,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973816313]
[2024-11-13 13:00:10,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:10,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 13:00:10,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:10,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 13:00:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 13:00:10,097 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:10,484 INFO L93 Difference]: Finished difference Result 154 states and 219 transitions.
[2024-11-13 13:00:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-13 13:00:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77
[2024-11-13 13:00:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:10,487 INFO L225 Difference]: With dead ends: 154
[2024-11-13 13:00:10,489 INFO L226 Difference]: Without dead ends: 105
[2024-11-13 13:00:10,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-13 13:00:10,492 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 70 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:10,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 266 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-13 13:00:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-11-13 13:00:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 87.
[2024-11-13 13:00:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 66 states have internal predecessors, (87), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-13 13:00:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions.
[2024-11-13 13:00:10,529 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 77
[2024-11-13 13:00:10,529 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:10,530 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions.
[2024-11-13 13:00:10,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions.
[2024-11-13 13:00:10,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-13 13:00:10,535 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:10,535 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:10,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 13:00:10,535 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:10,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:10,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1852009273, now seen corresponding path program 1 times
[2024-11-13 13:00:10,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:10,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390067935]
[2024-11-13 13:00:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:10,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 13:00:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 13:00:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 13:00:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 13:00:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 13:00:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 13:00:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 13:00:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 13:00:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 13:00:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 13:00:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 13:00:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:11,298 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-13 13:00:11,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:11,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390067935]
[2024-11-13 13:00:11,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390067935] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:11,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:11,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 13:00:11,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154269146]
[2024-11-13 13:00:11,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:11,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-13 13:00:11,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:11,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-13 13:00:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-13 13:00:11,303 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:11,687 INFO L93 Difference]: Finished difference Result 190 states and 270 transitions.
[2024-11-13 13:00:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-13 13:00:11,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77
[2024-11-13 13:00:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:11,691 INFO L225 Difference]: With dead ends: 190
[2024-11-13 13:00:11,692 INFO L226 Difference]: Without dead ends: 106
[2024-11-13 13:00:11,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:00:11,693 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 44 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:11,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 393 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-13 13:00:11,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-11-13 13:00:11,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 89.
[2024-11-13 13:00:11,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.328358208955224) internal successors, (89), 68 states have internal predecessors, (89), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-13 13:00:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions.
[2024-11-13 13:00:11,711 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 77
[2024-11-13 13:00:11,711 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:11,712 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions.
[2024-11-13 13:00:11,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions.
[2024-11-13 13:00:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-13 13:00:11,713 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:11,713 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:11,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 13:00:11,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:11,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:11,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1045561591, now seen corresponding path program 1 times
[2024-11-13 13:00:11,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:11,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895973168]
[2024-11-13 13:00:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:11,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 13:00:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 13:00:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 13:00:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 13:00:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 13:00:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 13:00:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 13:00:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 13:00:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 13:00:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 13:00:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 13:00:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-13 13:00:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895973168]
[2024-11-13 13:00:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895973168] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 13:00:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390181187]
[2024-11-13 13:00:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-13 13:00:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:12,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-13 13:00:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-13 13:00:12,739 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:13,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:13,163 INFO L93 Difference]: Finished difference Result 193 states and 272 transitions.
[2024-11-13 13:00:13,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-13 13:00:13,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78
[2024-11-13 13:00:13,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:13,165 INFO L225 Difference]: With dead ends: 193
[2024-11-13 13:00:13,165 INFO L226 Difference]: Without dead ends: 107
[2024-11-13 13:00:13,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2024-11-13 13:00:13,167 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 71 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:13,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 287 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-13 13:00:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2024-11-13 13:00:13,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 87.
[2024-11-13 13:00:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.323076923076923) internal successors, (86), 66 states have internal predecessors, (86), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-13 13:00:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions.
[2024-11-13 13:00:13,187 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 78
[2024-11-13 13:00:13,188 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:13,188 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions.
[2024-11-13 13:00:13,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:13,189 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions.
[2024-11-13 13:00:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2024-11-13 13:00:13,190 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:13,190 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:13,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 13:00:13,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:13,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:13,192 INFO L85 PathProgramCache]: Analyzing trace with hash 652534581, now seen corresponding path program 1 times
[2024-11-13 13:00:13,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:13,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548676172]
[2024-11-13 13:00:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:13,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 13:00:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 13:00:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 13:00:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 13:00:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 13:00:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 13:00:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 13:00:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 13:00:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 13:00:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 13:00:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 13:00:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,805 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-13 13:00:13,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:13,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548676172]
[2024-11-13 13:00:13,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548676172] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:13,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:13,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-13 13:00:13,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484413911]
[2024-11-13 13:00:13,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:13,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-13 13:00:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-13 13:00:13,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:00:13,808 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:14,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:14,249 INFO L93 Difference]: Finished difference Result 188 states and 265 transitions.
[2024-11-13 13:00:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-13 13:00:14,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78
[2024-11-13 13:00:14,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:14,252 INFO L225 Difference]: With dead ends: 188
[2024-11-13 13:00:14,252 INFO L226 Difference]: Without dead ends: 104
[2024-11-13 13:00:14,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-13 13:00:14,254 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 44 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:14,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 409 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-13 13:00:14,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2024-11-13 13:00:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 85.
[2024-11-13 13:00:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 64 states have internal predecessors, (83), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-13 13:00:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions.
[2024-11-13 13:00:14,269 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 78
[2024-11-13 13:00:14,269 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:14,269 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions.
[2024-11-13 13:00:14,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:00:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions.
[2024-11-13 13:00:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-13 13:00:14,271 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:14,272 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:14,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 13:00:14,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:14,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2020541554, now seen corresponding path program 1 times
[2024-11-13 13:00:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:14,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726583161]
[2024-11-13 13:00:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:14,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-13 13:00:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903162042]
[2024-11-13 13:00:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:14,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:00:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:00:14,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:00:14,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 13:00:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:14,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-13 13:00:14,504 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:00:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked.
[2024-11-13 13:00:15,068 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:00:15,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:15,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726583161]
[2024-11-13 13:00:15,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-13 13:00:15,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903162042]
[2024-11-13 13:00:15,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903162042] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:00:15,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-13 13:00:15,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2024-11-13 13:00:15,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737696192]
[2024-11-13 13:00:15,334 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:00:15,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-13 13:00:15,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-13 13:00:15,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110
[2024-11-13 13:00:15,336 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:00:15,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:15,797 INFO L93 Difference]: Finished difference Result 229 states and 321 transitions.
[2024-11-13 13:00:15,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-13 13:00:15,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79
[2024-11-13 13:00:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:15,800 INFO L225 Difference]: With dead ends: 229
[2024-11-13 13:00:15,801 INFO L226 Difference]: Without dead ends: 147
[2024-11-13 13:00:15,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=239, Unknown=1, NotChecked=0, Total=342
[2024-11-13 13:00:15,802 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 101 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 33 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:15,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 301 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 138 Invalid, 2 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-13 13:00:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states.
[2024-11-13 13:00:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 124.
[2024-11-13 13:00:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 89 states have internal predecessors, (113), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30)
[2024-11-13 13:00:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 173 transitions.
[2024-11-13 13:00:15,827 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 173 transitions. Word has length 79
[2024-11-13 13:00:15,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:15,827 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 173 transitions.
[2024-11-13 13:00:15,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:00:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 173 transitions.
[2024-11-13 13:00:15,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-13 13:00:15,833 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:15,833 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:15,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-13 13:00:16,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-13 13:00:16,035 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:16,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:16,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1573361164, now seen corresponding path program 1 times
[2024-11-13 13:00:16,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:16,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486236121]
[2024-11-13 13:00:16,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:16,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-13 13:00:16,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43861502]
[2024-11-13 13:00:16,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:16,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:00:16,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:00:16,089 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:00:16,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-13 13:00:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-13 13:00:16,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-13 13:00:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-13 13:00:16,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-13 13:00:16,323 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-13 13:00:16,324 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-13 13:00:16,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-13 13:00:16,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:00:16,532 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:16,634 INFO L173 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-13 13:00:16,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:00:16 BoogieIcfgContainer
[2024-11-13 13:00:16,641 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-13 13:00:16,642 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-13 13:00:16,642 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-13 13:00:16,643 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-13 13:00:16,643 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:08" (3/4) ...
[2024-11-13 13:00:16,646 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-13 13:00:16,647 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-13 13:00:16,648 INFO L158 Benchmark]: Toolchain (without parser) took 9701.51ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.5MB in the beginning and 55.0MB in the end (delta: 37.5MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB.
[2024-11-13 13:00:16,650 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-13 13:00:16,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.05ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:00:16,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.82ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 77.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:00:16,652 INFO L158 Benchmark]: Boogie Preprocessor took 66.64ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 74.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-13 13:00:16,653 INFO L158 Benchmark]: RCFGBuilder took 656.29ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 57.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-13 13:00:16,654 INFO L158 Benchmark]: TraceAbstraction took 8575.13ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 57.2MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB.
[2024-11-13 13:00:16,655 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 142.6MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-13 13:00:16,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.03ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 330.05ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 56.82ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 77.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 66.64ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 74.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 656.29ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 57.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 8575.13ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 57.2MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB.
* Witness Printer took 5.47ms. Allocated memory is still 142.6MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 87, overapproximation of someBinaryDOUBLEComparisonOperation at line 79.
Possible FailurePath:
[L21] unsigned char isInitial = 0;
[L22] signed long int var_1_1 = 200;
[L23] unsigned char var_1_2 = 0;
[L24] signed long int var_1_3 = 1107940323;
[L25] unsigned char var_1_6 = 0;
[L26] unsigned char var_1_7 = 0;
[L27] unsigned char var_1_8 = 16;
[L28] unsigned char var_1_9 = 16;
[L29] unsigned short int var_1_10 = 4;
[L30] double var_1_11 = 1000000.5;
[L31] double var_1_12 = 1.25;
[L32] signed long int last_1_var_1_1 = 200;
[L33] unsigned char last_1_var_1_8 = 16;
[L34] unsigned short int last_1_var_1_10 = 4;
VAL [isInitial=0, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L91] isInitial = 1
[L92] FCALL initially()
[L93] COND TRUE 1
[L94] CALL updateLastVariables()
[L82] last_1_var_1_1 = var_1_1
[L83] last_1_var_1_8 = var_1_8
[L84] last_1_var_1_10 = var_1_10
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L94] RET updateLastVariables()
[L95] CALL updateVariables()
[L63] var_1_2 = __VERIFIER_nondet_uchar()
[L64] CALL assume_abort_if_not(var_1_2 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L64] RET assume_abort_if_not(var_1_2 >= 0)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L65] CALL assume_abort_if_not(var_1_2 <= 1)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L65] RET assume_abort_if_not(var_1_2 <= 1)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L66] var_1_3 = __VERIFIER_nondet_long()
[L67] CALL assume_abort_if_not(var_1_3 >= 1073741822)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L67] RET assume_abort_if_not(var_1_3 >= 1073741822)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L68] CALL assume_abort_if_not(var_1_3 <= 2147483646)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L68] RET assume_abort_if_not(var_1_3 <= 2147483646)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16]
[L69] var_1_6 = __VERIFIER_nondet_uchar()
[L70] CALL assume_abort_if_not(var_1_6 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_7=0, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_7=0, var_1_8=16, var_1_9=16]
[L70] RET assume_abort_if_not(var_1_6 >= 0)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_7=0, var_1_8=16, var_1_9=16]
[L71] CALL assume_abort_if_not(var_1_6 <= 1)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16]
[L71] RET assume_abort_if_not(var_1_6 <= 1)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16]
[L72] var_1_7 = __VERIFIER_nondet_uchar()
[L73] CALL assume_abort_if_not(var_1_7 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_8=16, var_1_9=16]
[L73] RET assume_abort_if_not(var_1_7 >= 0)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_8=16, var_1_9=16]
[L74] CALL assume_abort_if_not(var_1_7 <= 1)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16]
[L74] RET assume_abort_if_not(var_1_7 <= 1)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16]
[L75] var_1_9 = __VERIFIER_nondet_uchar()
[L76] CALL assume_abort_if_not(var_1_9 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16]
[L76] RET assume_abort_if_not(var_1_9 >= 0)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16]
[L77] CALL assume_abort_if_not(var_1_9 <= 254)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L77] RET assume_abort_if_not(var_1_9 <= 254)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L78] var_1_12 = __VERIFIER_nondet_double()
[L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F ))
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F ))
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L95] RET updateVariables()
[L96] CALL step()
[L38] signed long int stepLocal_2 = last_1_var_1_8;
[L39] signed long int stepLocal_1 = var_1_3 * last_1_var_1_8;
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L40] COND TRUE stepLocal_1 >= last_1_var_1_1
[L41] var_1_10 = (2 + var_1_9)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L49] signed long int stepLocal_0 = last_1_var_1_10 / var_1_3;
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_0=0, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L50] COND FALSE !(stepLocal_0 >= (500 - last_1_var_1_10))
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L53] var_1_11 = var_1_12
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L54] COND TRUE \read(var_1_2)
[L55] var_1_1 = ((var_1_3 - var_1_10) - var_1_8)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L96] RET step()
[L97] CALL, EXPR property()
[L87] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L87] EXPR ((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L87] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L87-L88] return (((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))) && (var_1_11 == ((double) var_1_12))
;
[L97] RET, EXPR property()
[L97] CALL __VERIFIER_assert(property())
[L19] COND TRUE !(cond)
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
[L19] reach_error()
VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 7, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 330 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 1731 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1233 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 509 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 498 mSDtfsCounter, 509 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 304 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 97 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 703 NumberOfCodeBlocks, 703 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 460 ConstructedInterpolants, 1 QuantifiedInterpolants, 1129 SizeOfPredicates, 3 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1296/1320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-13 13:00:16,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd --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 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 13:00:19,839 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-13 13:00:20,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-13 13:00:20,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 13:00:20,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 13:00:20,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 13:00:20,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 13:00:20,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 13:00:20,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 13:00:20,056 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-13 13:00:20,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 13:00:20,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 13:00:20,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 13:00:20,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-13 13:00:20,059 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-13 13:00:20,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 13:00:20,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-13 13:00:20,060 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-13 13:00:20,060 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-13 13:00:20,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-13 13:00:20,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 13:00:20,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 13:00:20,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 13:00:20,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-13 13:00:20,061 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-13 13:00:20,061 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-13 13:00:20,062 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-13 13:00:20,062 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-13 13:00:20,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-13 13:00:20,062 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-13 13:00:20,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 13:00:20,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-13 13:00:20,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 13:00:20,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-13 13:00:20,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:00:20,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 13:00:20,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 13:00:20,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 13:00:20,066 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_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd
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 -> 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c
[2024-11-13 13:00:20,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 13:00:20,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 13:00:20,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 13:00:20,485 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-13 13:00:20,485 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-13 13:00:20,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i
Unable to find full path for "g++"
[2024-11-13 13:00:22,793 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-13 13:00:23,137 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-13 13:00:23,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i
[2024-11-13 13:00:23,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data/64e000a1f/fc9630a52ec14b3e854828d623aaebea/FLAGcd02ca093
[2024-11-13 13:00:23,183 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/data/64e000a1f/fc9630a52ec14b3e854828d623aaebea
[2024-11-13 13:00:23,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 13:00:23,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 13:00:23,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 13:00:23,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 13:00:23,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 13:00:23,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d95cf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23, skipping insertion in model container
[2024-11-13 13:00:23,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,229 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-13 13:00:23,439 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928]
[2024-11-13 13:00:23,505 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:00:23,531 INFO L200 MainTranslator]: Completed pre-run
[2024-11-13 13:00:23,551 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_b337eb2e-b124-427f-9827-4d1d881fe28d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928]
[2024-11-13 13:00:23,594 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:00:23,626 INFO L204 MainTranslator]: Completed translation
[2024-11-13 13:00:23,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23 WrapperNode
[2024-11-13 13:00:23,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 13:00:23,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 13:00:23,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 13:00:23,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 13:00:23,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,695 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93
[2024-11-13 13:00:23,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 13:00:23,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 13:00:23,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 13:00:23,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 13:00:23,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,737 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].
[2024-11-13 13:00:23,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 13:00:23,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 13:00:23,775 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 13:00:23,775 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-13 13:00:23,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (1/1) ...
[2024-11-13 13:00:23,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:00:23,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:00:23,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 13:00:23,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 13:00:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 13:00:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-13 13:00:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-13 13:00:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-13 13:00:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 13:00:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 13:00:23,993 INFO L238 CfgBuilder]: Building ICFG
[2024-11-13 13:00:23,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 13:00:24,420 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-13 13:00:24,421 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-13 13:00:24,437 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 13:00:24,437 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 13:00:24,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:24 BoogieIcfgContainer
[2024-11-13 13:00:24,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 13:00:24,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 13:00:24,442 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 13:00:24,449 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-13 13:00:24,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:00:23" (1/3) ...
[2024-11-13 13:00:24,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771a315e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:24, skipping insertion in model container
[2024-11-13 13:00:24,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:23" (2/3) ...
[2024-11-13 13:00:24,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771a315e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:24, skipping insertion in model container
[2024-11-13 13:00:24,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:24" (3/3) ...
[2024-11-13 13:00:24,455 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-31.i
[2024-11-13 13:00:24,479 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 13:00:24,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-31.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 13:00:24,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 13:00:24,582 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;@50f957f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 13:00:24,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 13:00:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-13 13:00:24,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-11-13 13:00:24,599 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:24,600 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:24,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:24,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:24,607 INFO L85 PathProgramCache]: Analyzing trace with hash -676367928, now seen corresponding path program 1 times
[2024-11-13 13:00:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:00:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603080138]
[2024-11-13 13:00:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:24,621 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
[2024-11-13 13:00:24,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:00:24,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:00:24,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:00:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:24,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-13 13:00:24,935 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:00:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked.
[2024-11-13 13:00:24,973 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 13:00:24,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:00:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603080138]
[2024-11-13 13:00:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603080138] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:24,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:24,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:00:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686238092]
[2024-11-13 13:00:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:24,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-13 13:00:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:00:25,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-13 13:00:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 13:00:25,009 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:00:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:25,034 INFO L93 Difference]: Finished difference Result 79 states and 127 transitions.
[2024-11-13 13:00:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-13 13:00:25,036 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75
[2024-11-13 13:00:25,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:25,044 INFO L225 Difference]: With dead ends: 79
[2024-11-13 13:00:25,044 INFO L226 Difference]: Without dead ends: 39
[2024-11-13 13:00:25,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 13:00:25,052 INFO L432 NwaCegarLoop]: 54 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, 54 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
[2024-11-13 13:00:25,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 13:00:25,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2024-11-13 13:00:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2024-11-13 13:00:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-13 13:00:25,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions.
[2024-11-13 13:00:25,103 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 75
[2024-11-13 13:00:25,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:25,104 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions.
[2024-11-13 13:00:25,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:00:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions.
[2024-11-13 13:00:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-11-13 13:00:25,108 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:00:25,109 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:00:25,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:00:25,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:00:25,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:25,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:25,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1780215818, now seen corresponding path program 1 times
[2024-11-13 13:00:25,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:00:25,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449579069]
[2024-11-13 13:00:25,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:25,313 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
[2024-11-13 13:00:25,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:00:25,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:00:25,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:00:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:25,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-13 13:00:25,660 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:00:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 18 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-13 13:00:46,920 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:01:21,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:01:21,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449579069]
[2024-11-13 13:01:21,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449579069] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:01:21,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952422007]
[2024-11-13 13:01:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:01:21,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:01:21,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:01:21,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:01:21,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-13 13:01:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:01:21,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-13 13:01:21,848 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:01:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 109 proven. 39 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-13 13:01:36,200 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:02:29,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952422007] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:02:29,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-13 13:02:29,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 28
[2024-11-13 13:02:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843564737]
[2024-11-13 13:02:29,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:02:29,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2024-11-13 13:02:29,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:02:29,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2024-11-13 13:02:29,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1623, Unknown=0, NotChecked=0, Total=1980
[2024-11-13 13:02:29,515 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 27 states have internal predecessors, (60), 6 states have call successors, (22), 6 states have call predecessors, (22), 10 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22)
[2024-11-13 13:02:38,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:02:38,110 INFO L93 Difference]: Finished difference Result 111 states and 141 transitions.
[2024-11-13 13:02:38,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-13 13:02:38,111 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 27 states have internal predecessors, (60), 6 states have call successors, (22), 6 states have call predecessors, (22), 10 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 75
[2024-11-13 13:02:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:02:38,115 INFO L225 Difference]: With dead ends: 111
[2024-11-13 13:02:38,115 INFO L226 Difference]: Without dead ends: 109
[2024-11-13 13:02:38,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 131 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=850, Invalid=3440, Unknown=0, NotChecked=0, Total=4290
[2024-11-13 13:02:38,119 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 136 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-13 13:02:38,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 419 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-13 13:02:38,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2024-11-13 13:02:38,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 82.
[2024-11-13 13:02:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 13:02:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions.
[2024-11-13 13:02:38,149 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 75
[2024-11-13 13:02:38,149 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:02:38,150 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions.
[2024-11-13 13:02:38,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.0689655172413794) internal successors, (60), 27 states have internal predecessors, (60), 6 states have call successors, (22), 6 states have call predecessors, (22), 10 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22)
[2024-11-13 13:02:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions.
[2024-11-13 13:02:38,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-11-13 13:02:38,156 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:02:38,157 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:02:38,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-13 13:02:38,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:02:38,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:02:38,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:02:38,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:02:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash 5208456, now seen corresponding path program 1 times
[2024-11-13 13:02:38,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:02:38,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433853585]
[2024-11-13 13:02:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:02:38,560 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
[2024-11-13 13:02:38,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:02:38,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:02:38,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-13 13:02:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:02:38,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-13 13:02:38,764 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:02:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked.
[2024-11-13 13:02:40,457 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:02:44,733 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:02:44,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433853585]
[2024-11-13 13:02:44,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433853585] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:02:44,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021679866]
[2024-11-13 13:02:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:02:44,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:02:44,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:02:44,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:02:44,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-13 13:02:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:02:44,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-13 13:02:44,856 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:02:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked.
[2024-11-13 13:02:46,049 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:02:47,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021679866] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:02:47,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-13 13:02:47,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9
[2024-11-13 13:02:47,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765207570]
[2024-11-13 13:02:47,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:02:47,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-13 13:02:47,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:02:47,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-13 13:02:47,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2024-11-13 13:02:47,387 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:02:50,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:02:50,834 INFO L93 Difference]: Finished difference Result 143 states and 188 transitions.
[2024-11-13 13:02:50,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2024-11-13 13:02:50,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75
[2024-11-13 13:02:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:02:50,842 INFO L225 Difference]: With dead ends: 143
[2024-11-13 13:02:50,843 INFO L226 Difference]: Without dead ends: 107
[2024-11-13 13:02:50,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870
[2024-11-13 13:02:50,845 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 107 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:02:50,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 210 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-13 13:02:50,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2024-11-13 13:02:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 85.
[2024-11-13 13:02:50,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 57 states have internal predecessors, (66), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 13:02:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions.
[2024-11-13 13:02:50,870 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 75
[2024-11-13 13:02:50,871 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:02:50,871 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions.
[2024-11-13 13:02:50,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-13 13:02:50,871 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions.
[2024-11-13 13:02:50,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 13:02:50,873 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:02:50,873 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:02:50,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0
[2024-11-13 13:02:51,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-13 13:02:51,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:02:51,277 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:02:51,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:02:51,278 INFO L85 PathProgramCache]: Analyzing trace with hash -594382729, now seen corresponding path program 1 times
[2024-11-13 13:02:51,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:02:51,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727351878]
[2024-11-13 13:02:51,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:02:51,278 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
[2024-11-13 13:02:51,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:02:51,284 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:02:51,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2024-11-13 13:02:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:02:51,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-13 13:02:51,428 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:03:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:03:02,872 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:03:55,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:03:55,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727351878]
[2024-11-13 13:03:55,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727351878] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:03:55,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660807974]
[2024-11-13 13:03:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:03:55,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:03:55,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:03:55,024 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:03:55,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-13 13:03:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:03:55,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-13 13:03:55,155 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:04:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:04:06,915 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:04:57,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660807974] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:04:57,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-13 13:04:57,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23
[2024-11-13 13:04:57,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709406546]
[2024-11-13 13:04:57,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:04:57,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-13 13:04:57,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:04:57,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-13 13:04:57,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1180, Unknown=0, NotChecked=0, Total=1406
[2024-11-13 13:04:57,573 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 22 states have internal predecessors, (55), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-13 13:05:06,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:05:06,137 INFO L93 Difference]: Finished difference Result 116 states and 144 transitions.
[2024-11-13 13:05:06,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-13 13:05:06,149 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 22 states have internal predecessors, (55), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 76
[2024-11-13 13:05:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:05:06,151 INFO L225 Difference]: With dead ends: 116
[2024-11-13 13:05:06,151 INFO L226 Difference]: Without dead ends: 114
[2024-11-13 13:05:06,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=599, Invalid=2593, Unknown=0, NotChecked=0, Total=3192
[2024-11-13 13:05:06,160 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 170 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-13 13:05:06,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 273 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-13 13:05:06,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2024-11-13 13:05:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 86.
[2024-11-13 13:05:06,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 58 states have internal predecessors, (68), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 13:05:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions.
[2024-11-13 13:05:06,193 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 76
[2024-11-13 13:05:06,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:05:06,193 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions.
[2024-11-13 13:05:06,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 22 states have internal predecessors, (55), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-13 13:05:06,194 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions.
[2024-11-13 13:05:06,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 13:05:06,195 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:05:06,195 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:05:06,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0
[2024-11-13 13:05:06,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-13 13:05:06,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:05:06,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:05:06,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:05:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash -592535687, now seen corresponding path program 1 times
[2024-11-13 13:05:06,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:05:06,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204373632]
[2024-11-13 13:05:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:05:06,601 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
[2024-11-13 13:05:06,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:05:06,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:05:06,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (9)] Waiting until timeout for monitored process
[2024-11-13 13:05:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:05:06,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-13 13:05:06,860 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:05:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:05:19,758 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:06:17,768 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:06:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204373632]
[2024-11-13 13:06:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204373632] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:06:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326932317]
[2024-11-13 13:06:17,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:06:17,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:06:17,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:06:17,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:06:17,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-13 13:06:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:06:17,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-13 13:06:17,877 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:06:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 109 proven. 39 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-13 13:06:42,085 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:07:35,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326932317] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:07:35,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-13 13:07:35,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 32
[2024-11-13 13:07:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658565395]
[2024-11-13 13:07:35,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:07:35,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-11-13 13:07:35,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:07:35,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-11-13 13:07:35,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=1986, Unknown=0, NotChecked=0, Total=2450
[2024-11-13 13:07:35,527 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 33 states, 33 states have (on average 2.0) internal successors, (66), 30 states have internal predecessors, (66), 5 states have call successors, (22), 5 states have call predecessors, (22), 9 states have return successors, (22), 7 states have call predecessors, (22), 5 states have call successors, (22)
[2024-11-13 13:08:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:08:02,193 INFO L93 Difference]: Finished difference Result 107 states and 135 transitions.
[2024-11-13 13:08:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-13 13:08:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.0) internal successors, (66), 30 states have internal predecessors, (66), 5 states have call successors, (22), 5 states have call predecessors, (22), 9 states have return successors, (22), 7 states have call predecessors, (22), 5 states have call successors, (22) Word has length 76
[2024-11-13 13:08:02,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:08:02,196 INFO L225 Difference]: With dead ends: 107
[2024-11-13 13:08:02,196 INFO L226 Difference]: Without dead ends: 105
[2024-11-13 13:08:02,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1558 ImplicationChecksByTransitivity, 56.1s TimeCoverageRelationStatistics Valid=1005, Invalid=4107, Unknown=0, NotChecked=0, Total=5112
[2024-11-13 13:08:02,199 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 171 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-11-13 13:08:02,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 372 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2024-11-13 13:08:02,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-11-13 13:08:02,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 86.
[2024-11-13 13:08:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 58 states have internal predecessors, (68), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 13:08:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions.
[2024-11-13 13:08:02,218 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 76
[2024-11-13 13:08:02,220 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:08:02,220 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions.
[2024-11-13 13:08:02,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.0) internal successors, (66), 30 states have internal predecessors, (66), 5 states have call successors, (22), 5 states have call predecessors, (22), 9 states have return successors, (22), 7 states have call predecessors, (22), 5 states have call successors, (22)
[2024-11-13 13:08:02,220 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions.
[2024-11-13 13:08:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 13:08:02,221 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:08:02,222 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:08:02,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-13 13:08:02,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (9)] Forceful destruction successful, exit code 0
[2024-11-13 13:08:02,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:08:02,623 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:08:02,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:08:02,623 INFO L85 PathProgramCache]: Analyzing trace with hash -99446988, now seen corresponding path program 1 times
[2024-11-13 13:08:02,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:08:02,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537779770]
[2024-11-13 13:08:02,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:08:02,623 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
[2024-11-13 13:08:02,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:08:02,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:08:02,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (11)] Waiting until timeout for monitored process
[2024-11-13 13:08:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:08:02,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-13 13:08:02,770 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:08:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-13 13:08:03,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 13:08:03,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:08:03,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537779770]
[2024-11-13 13:08:03,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537779770] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:08:03,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:08:03,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 13:08:03,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798729285]
[2024-11-13 13:08:03,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:08:03,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 13:08:03,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:08:03,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 13:08:03,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 13:08:03,337 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:08:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:08:03,808 INFO L93 Difference]: Finished difference Result 183 states and 246 transitions.
[2024-11-13 13:08:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-13 13:08:03,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76
[2024-11-13 13:08:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:08:03,811 INFO L225 Difference]: With dead ends: 183
[2024-11-13 13:08:03,812 INFO L226 Difference]: Without dead ends: 145
[2024-11-13 13:08:03,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:08:03,813 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 82 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-13 13:08:03,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 174 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-13 13:08:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-11-13 13:08:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 123.
[2024-11-13 13:08:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 83 states have (on average 1.1686746987951808) internal successors, (97), 83 states have internal predecessors, (97), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-13 13:08:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 163 transitions.
[2024-11-13 13:08:03,843 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 163 transitions. Word has length 76
[2024-11-13 13:08:03,843 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:08:03,844 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 163 transitions.
[2024-11-13 13:08:03,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-13 13:08:03,844 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 163 transitions.
[2024-11-13 13:08:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 13:08:03,845 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:08:03,846 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:08:03,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (11)] Ended with exit code 0
[2024-11-13 13:08:04,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:08:04,047 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:08:04,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:08:04,048 INFO L85 PathProgramCache]: Analyzing trace with hash 580611382, now seen corresponding path program 1 times
[2024-11-13 13:08:04,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:08:04,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840219338]
[2024-11-13 13:08:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:08:04,049 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
[2024-11-13 13:08:04,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:08:04,052 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:08:04,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (12)] Waiting until timeout for monitored process
[2024-11-13 13:08:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:08:04,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-13 13:08:04,434 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:08:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:08:14,567 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:09:33,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:09:33,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840219338]
[2024-11-13 13:09:33,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840219338] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:09:33,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734657158]
[2024-11-13 13:09:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:09:33,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:09:33,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:09:33,110 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:09:33,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-13 13:09:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:09:33,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-13 13:09:33,215 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:09:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:09:42,179 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:10:53,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734657158] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:10:53,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-13 13:10:53,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24
[2024-11-13 13:10:53,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100221599]
[2024-11-13 13:10:53,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:10:53,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-13 13:10:53,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:10:53,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-13 13:10:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892
[2024-11-13 13:10:53,817 INFO L87 Difference]: Start difference. First operand 123 states and 163 transitions. Second operand has 25 states, 25 states have (on average 2.2) internal successors, (55), 23 states have internal predecessors, (55), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-13 13:11:02,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:11:02,612 INFO L93 Difference]: Finished difference Result 153 states and 196 transitions.
[2024-11-13 13:11:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-11-13 13:11:02,621 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 23 states have internal predecessors, (55), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 76
[2024-11-13 13:11:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:11:02,622 INFO L225 Difference]: With dead ends: 153
[2024-11-13 13:11:02,622 INFO L226 Difference]: Without dead ends: 151
[2024-11-13 13:11:02,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 130 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 53.4s TimeCoverageRelationStatistics Valid=762, Invalid=3270, Unknown=0, NotChecked=0, Total=4032
[2024-11-13 13:11:02,624 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-13 13:11:02,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 383 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-13 13:11:02,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2024-11-13 13:11:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 125.
[2024-11-13 13:11:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 85 states have internal predecessors, (100), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-13 13:11:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions.
[2024-11-13 13:11:02,682 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 76
[2024-11-13 13:11:02,682 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:11:02,683 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions.
[2024-11-13 13:11:02,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 23 states have internal predecessors, (55), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-13 13:11:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions.
[2024-11-13 13:11:02,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-13 13:11:02,684 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:11:02,684 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:11:02,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-13 13:11:02,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (12)] Ended with exit code 0
[2024-11-13 13:11:03,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:11:03,086 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:11:03,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:11:03,086 INFO L85 PathProgramCache]: Analyzing trace with hash 872585419, now seen corresponding path program 1 times
[2024-11-13 13:11:03,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:11:03,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223526540]
[2024-11-13 13:11:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:11:03,088 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
[2024-11-13 13:11:03,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:11:03,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:11:03,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (14)] Waiting until timeout for monitored process
[2024-11-13 13:11:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:11:03,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-13 13:11:03,310 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:11:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:11:14,390 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:12:42,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-13 13:12:42,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223526540]
[2024-11-13 13:12:42,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223526540] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:12:42,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653456454]
[2024-11-13 13:12:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:12:42,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:12:42,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:12:42,332 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:12:42,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-13 13:12:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:12:42,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-13 13:12:42,442 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:12:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:12:52,308 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 13:14:03,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653456454] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:14:03,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-13 13:14:03,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 25
[2024-11-13 13:14:03,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172208208]
[2024-11-13 13:14:03,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-13 13:14:03,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-13 13:14:03,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-13 13:14:03,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-13 13:14:03,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=1686, Unknown=0, NotChecked=0, Total=2070
[2024-11-13 13:14:03,898 INFO L87 Difference]: Start difference. First operand 125 states and 166 transitions. Second operand has 26 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 24 states have internal predecessors, (56), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-13 13:14:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:14:12,618 INFO L93 Difference]: Finished difference Result 153 states and 195 transitions.
[2024-11-13 13:14:12,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-13 13:14:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 24 states have internal predecessors, (56), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 77
[2024-11-13 13:14:12,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:14:12,629 INFO L225 Difference]: With dead ends: 153
[2024-11-13 13:14:12,629 INFO L226 Difference]: Without dead ends: 151
[2024-11-13 13:14:12,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 58.5s TimeCoverageRelationStatistics Valid=847, Invalid=3575, Unknown=0, NotChecked=0, Total=4422
[2024-11-13 13:14:12,631 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 156 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-13 13:14:12,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 337 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-13 13:14:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2024-11-13 13:14:12,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 126.
[2024-11-13 13:14:12,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 86 states have (on average 1.186046511627907) internal successors, (102), 86 states have internal predecessors, (102), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2024-11-13 13:14:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 168 transitions.
[2024-11-13 13:14:12,658 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 168 transitions. Word has length 77
[2024-11-13 13:14:12,658 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:14:12,658 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 168 transitions.
[2024-11-13 13:14:12,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 24 states have internal predecessors, (56), 4 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-13 13:14:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 168 transitions.
[2024-11-13 13:14:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-13 13:14:12,660 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:14:12,660 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:14:12,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-13 13:14:12,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (14)] Ended with exit code 0
[2024-11-13 13:14:13,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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
[2024-11-13 13:14:13,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:14:13,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:14:13,066 INFO L85 PathProgramCache]: Analyzing trace with hash 874432461, now seen corresponding path program 1 times
[2024-11-13 13:14:13,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-13 13:14:13,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139225425]
[2024-11-13 13:14:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:14:13,067 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
[2024-11-13 13:14:13,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/mathsat
[2024-11-13 13:14:13,074 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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)
[2024-11-13 13:14:13,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b337eb2e-b124-427f-9827-4d1d881fe28d/bin/uautomizer-verify-qhAvR1uOyd/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 (16)] Waiting until timeout for monitored process
[2024-11-13 13:14:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:14:13,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-13 13:14:13,234 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:14:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked.
[2024-11-13 13:14:22,437 INFO L311 TraceCheckSpWp]: Computing backward predicates...