./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label14.c --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_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/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_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/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_77d49f68-939e-452e-b858-8188f6711397/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 57f7a1998dcd55fec053068d0046a0ca66d4d8a7aa0cff34b96de19d20fe9283
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 16:07:25,229 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-13 16:07:25,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 16:07:25,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 16:07:25,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 16:07:25,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 16:07:25,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 16:07:25,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 16:07:25,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 16:07:25,349 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-13 16:07:25,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 16:07:25,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 16:07:25,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 16:07:25,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-13 16:07:25,350 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-13 16:07:25,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 16:07:25,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 16:07:25,352 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-13 16:07:25,352 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-13 16:07:25,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-13 16:07:25,352 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-13 16:07:25,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 16:07:25,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-13 16:07:25,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 16:07:25,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-13 16:07:25,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 16:07:25,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 16:07:25,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 16:07:25,354 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_77d49f68-939e-452e-b858-8188f6711397/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 -> 57f7a1998dcd55fec053068d0046a0ca66d4d8a7aa0cff34b96de19d20fe9283
[2024-11-13 16:07:25,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 16:07:25,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 16:07:25,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 16:07:25,662 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-13 16:07:25,662 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-13 16:07:25,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem03_label14.c
Unable to find full path for "g++"
[2024-11-13 16:07:27,572 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-13 16:07:27,991 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-13 16:07:27,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/sv-benchmarks/c/eca-rers2012/Problem03_label14.c
[2024-11-13 16:07:28,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/data/3b5501e17/4dc7234025e04f33bbdb8b97beec50c5/FLAG89bd12887
[2024-11-13 16:07:28,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/data/3b5501e17/4dc7234025e04f33bbdb8b97beec50c5
[2024-11-13 16:07:28,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 16:07:28,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 16:07:28,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 16:07:28,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 16:07:28,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 16:07:28,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:07:28" (1/1) ...
[2024-11-13 16:07:28,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444c6d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:28, skipping insertion in model container
[2024-11-13 16:07:28,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:07:28" (1/1) ...
[2024-11-13 16:07:28,135 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-13 16:07:28,807 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_77d49f68-939e-452e-b858-8188f6711397/sv-benchmarks/c/eca-rers2012/Problem03_label14.c[57171,57184]
[2024-11-13 16:07:28,850 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 16:07:28,862 INFO L200 MainTranslator]: Completed pre-run
[2024-11-13 16:07:29,066 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_77d49f68-939e-452e-b858-8188f6711397/sv-benchmarks/c/eca-rers2012/Problem03_label14.c[57171,57184]
[2024-11-13 16:07:29,080 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 16:07:29,097 INFO L204 MainTranslator]: Completed translation
[2024-11-13 16:07:29,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29 WrapperNode
[2024-11-13 16:07:29,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 16:07:29,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 16:07:29,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 16:07:29,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 16:07:29,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,266 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771
[2024-11-13 16:07:29,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 16:07:29,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 16:07:29,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 16:07:29,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 16:07:29,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,355 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 16:07:29,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 16:07:29,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 16:07:29,487 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 16:07:29,487 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-13 16:07:29,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (1/1) ...
[2024-11-13 16:07:29,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 16:07:29,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:07:29,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 16:07:29,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 16:07:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 16:07:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 16:07:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 16:07:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 16:07:29,673 INFO L238 CfgBuilder]: Building ICFG
[2024-11-13 16:07:29,675 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 16:07:32,139 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live.
[2024-11-13 16:07:32,139 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-13 16:07:32,165 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 16:07:32,169 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 16:07:32,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:07:32 BoogieIcfgContainer
[2024-11-13 16:07:32,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 16:07:32,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 16:07:32,171 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 16:07:32,178 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-13 16:07:32,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:07:28" (1/3) ...
[2024-11-13 16:07:32,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b3ebc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:07:32, skipping insertion in model container
[2024-11-13 16:07:32,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:29" (2/3) ...
[2024-11-13 16:07:32,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b3ebc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:07:32, skipping insertion in model container
[2024-11-13 16:07:32,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:07:32" (3/3) ...
[2024-11-13 16:07:32,181 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label14.c
[2024-11-13 16:07:32,199 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 16:07:32,202 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem03_label14.c that has 1 procedures, 302 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 16:07:32,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 16:07:32,296 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;@7e5ba0c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 16:07:32,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 16:07:32,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-13 16:07:32,322 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:32,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:32,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:32,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash 508157578, now seen corresponding path program 1 times
[2024-11-13 16:07:32,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:32,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160153407]
[2024-11-13 16:07:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:07:33,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:33,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160153407]
[2024-11-13 16:07:33,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160153407] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:33,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:33,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 16:07:33,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874955738]
[2024-11-13 16:07:33,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:33,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:33,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:33,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:33,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:33,643 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:35,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:35,105 INFO L93 Difference]: Finished difference Result 855 states and 1496 transitions.
[2024-11-13 16:07:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:35,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170
[2024-11-13 16:07:35,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:35,118 INFO L225 Difference]: With dead ends: 855
[2024-11-13 16:07:35,118 INFO L226 Difference]: Without dead ends: 460
[2024-11-13 16:07:35,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:35,124 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 126 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:35,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 175 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-13 16:07:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states.
[2024-11-13 16:07:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459.
[2024-11-13 16:07:35,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.5502183406113537) internal successors, (710), 458 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 710 transitions.
[2024-11-13 16:07:35,196 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 710 transitions. Word has length 170
[2024-11-13 16:07:35,198 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:35,198 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 710 transitions.
[2024-11-13 16:07:35,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 710 transitions.
[2024-11-13 16:07:35,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2024-11-13 16:07:35,207 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:35,208 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:35,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 16:07:35,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:35,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:35,209 INFO L85 PathProgramCache]: Analyzing trace with hash 586315929, now seen corresponding path program 1 times
[2024-11-13 16:07:35,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:35,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995388723]
[2024-11-13 16:07:35,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:35,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:07:35,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:35,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995388723]
[2024-11-13 16:07:35,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995388723] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:35,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:35,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 16:07:35,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873531403]
[2024-11-13 16:07:35,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:35,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:35,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:35,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:35,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:35,627 INFO L87 Difference]: Start difference. First operand 459 states and 710 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:36,736 INFO L93 Difference]: Finished difference Result 1342 states and 2082 transitions.
[2024-11-13 16:07:36,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:36,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175
[2024-11-13 16:07:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:36,740 INFO L225 Difference]: With dead ends: 1342
[2024-11-13 16:07:36,741 INFO L226 Difference]: Without dead ends: 885
[2024-11-13 16:07:36,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:36,743 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 251 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:36,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 182 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-13 16:07:36,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states.
[2024-11-13 16:07:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 880.
[2024-11-13 16:07:36,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4687144482366326) internal successors, (1291), 879 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1291 transitions.
[2024-11-13 16:07:36,784 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1291 transitions. Word has length 175
[2024-11-13 16:07:36,784 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:36,784 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1291 transitions.
[2024-11-13 16:07:36,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1291 transitions.
[2024-11-13 16:07:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2024-11-13 16:07:36,788 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:36,788 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:36,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 16:07:36,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:36,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2066354967, now seen corresponding path program 1 times
[2024-11-13 16:07:36,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:36,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289102032]
[2024-11-13 16:07:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:07:37,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:37,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289102032]
[2024-11-13 16:07:37,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289102032] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:37,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 16:07:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786345660]
[2024-11-13 16:07:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:37,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:37,079 INFO L87 Difference]: Start difference. First operand 880 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:38,206 INFO L93 Difference]: Finished difference Result 2594 states and 3822 transitions.
[2024-11-13 16:07:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178
[2024-11-13 16:07:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:38,215 INFO L225 Difference]: With dead ends: 2594
[2024-11-13 16:07:38,216 INFO L226 Difference]: Without dead ends: 1716
[2024-11-13 16:07:38,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:38,218 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:38,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 92 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-13 16:07:38,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states.
[2024-11-13 16:07:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1696.
[2024-11-13 16:07:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.43834808259587) internal successors, (2438), 1695 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2438 transitions.
[2024-11-13 16:07:38,286 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2438 transitions. Word has length 178
[2024-11-13 16:07:38,286 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:38,286 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2438 transitions.
[2024-11-13 16:07:38,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:38,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2438 transitions.
[2024-11-13 16:07:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2024-11-13 16:07:38,296 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:38,296 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:38,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 16:07:38,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:38,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash -855579760, now seen corresponding path program 1 times
[2024-11-13 16:07:38,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:38,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659872941]
[2024-11-13 16:07:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-13 16:07:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:38,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659872941]
[2024-11-13 16:07:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659872941] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:38,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:07:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344537854]
[2024-11-13 16:07:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:38,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:38,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:38,737 INFO L87 Difference]: Start difference. First operand 1696 states and 2438 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:39,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:39,827 INFO L93 Difference]: Finished difference Result 5017 states and 7221 transitions.
[2024-11-13 16:07:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:39,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190
[2024-11-13 16:07:39,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:39,840 INFO L225 Difference]: With dead ends: 5017
[2024-11-13 16:07:39,841 INFO L226 Difference]: Without dead ends: 3323
[2024-11-13 16:07:39,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:39,844 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 236 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:39,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 410 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-13 16:07:39,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states.
[2024-11-13 16:07:39,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3320.
[2024-11-13 16:07:39,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.2853269056944863) internal successors, (4266), 3319 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4266 transitions.
[2024-11-13 16:07:39,929 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4266 transitions. Word has length 190
[2024-11-13 16:07:39,930 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:39,930 INFO L471 AbstractCegarLoop]: Abstraction has 3320 states and 4266 transitions.
[2024-11-13 16:07:39,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4266 transitions.
[2024-11-13 16:07:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2024-11-13 16:07:39,937 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:39,937 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 16:07:39,938 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:39,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1814039172, now seen corresponding path program 1 times
[2024-11-13 16:07:39,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:39,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985186451]
[2024-11-13 16:07:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-13 16:07:40,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:40,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985186451]
[2024-11-13 16:07:40,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985186451] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:40,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:40,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:07:40,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376516154]
[2024-11-13 16:07:40,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:40,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:40,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:40,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:40,460 INFO L87 Difference]: Start difference. First operand 3320 states and 4266 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:41,531 INFO L93 Difference]: Finished difference Result 8274 states and 10606 transitions.
[2024-11-13 16:07:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:41,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198
[2024-11-13 16:07:41,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:41,566 INFO L225 Difference]: With dead ends: 8274
[2024-11-13 16:07:41,567 INFO L226 Difference]: Without dead ends: 4956
[2024-11-13 16:07:41,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:41,570 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 214 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:41,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 410 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-13 16:07:41,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4956 states.
[2024-11-13 16:07:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4956 to 4944.
[2024-11-13 16:07:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4943 states have (on average 1.2413514060287274) internal successors, (6136), 4943 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:41,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 6136 transitions.
[2024-11-13 16:07:41,695 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 6136 transitions. Word has length 198
[2024-11-13 16:07:41,696 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:41,696 INFO L471 AbstractCegarLoop]: Abstraction has 4944 states and 6136 transitions.
[2024-11-13 16:07:41,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:41,696 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 6136 transitions.
[2024-11-13 16:07:41,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206
[2024-11-13 16:07:41,706 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:41,706 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:41,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 16:07:41,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:41,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:41,707 INFO L85 PathProgramCache]: Analyzing trace with hash -441544809, now seen corresponding path program 1 times
[2024-11-13 16:07:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876663227]
[2024-11-13 16:07:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-13 16:07:42,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:42,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876663227]
[2024-11-13 16:07:42,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876663227] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:42,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:42,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:07:42,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384682618]
[2024-11-13 16:07:42,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:42,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:42,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:42,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:42,195 INFO L87 Difference]: Start difference. First operand 4944 states and 6136 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:43,331 INFO L93 Difference]: Finished difference Result 13757 states and 17027 transitions.
[2024-11-13 16:07:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205
[2024-11-13 16:07:43,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:43,364 INFO L225 Difference]: With dead ends: 13757
[2024-11-13 16:07:43,364 INFO L226 Difference]: Without dead ends: 8815
[2024-11-13 16:07:43,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:43,372 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 202 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:43,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 418 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-13 16:07:43,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8815 states.
[2024-11-13 16:07:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8815 to 8404.
[2024-11-13 16:07:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8404 states, 8403 states have (on average 1.2023086992740688) internal successors, (10103), 8403 states have internal predecessors, (10103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 10103 transitions.
[2024-11-13 16:07:43,590 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 10103 transitions. Word has length 205
[2024-11-13 16:07:43,591 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:43,591 INFO L471 AbstractCegarLoop]: Abstraction has 8404 states and 10103 transitions.
[2024-11-13 16:07:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 10103 transitions.
[2024-11-13 16:07:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2024-11-13 16:07:43,604 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:43,605 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:43,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 16:07:43,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:43,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2055275480, now seen corresponding path program 1 times
[2024-11-13 16:07:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255425273]
[2024-11-13 16:07:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:07:43,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:43,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255425273]
[2024-11-13 16:07:43,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255425273] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:43,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:43,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 16:07:43,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144944569]
[2024-11-13 16:07:43,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:43,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:43,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:43,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:43,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:44,000 INFO L87 Difference]: Start difference. First operand 8404 states and 10103 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:45,128 INFO L93 Difference]: Finished difference Result 21087 states and 25314 transitions.
[2024-11-13 16:07:45,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:45,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211
[2024-11-13 16:07:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:45,168 INFO L225 Difference]: With dead ends: 21087
[2024-11-13 16:07:45,168 INFO L226 Difference]: Without dead ends: 12278
[2024-11-13 16:07:45,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:45,178 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 201 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:45,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 160 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-13 16:07:45,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12278 states.
[2024-11-13 16:07:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12278 to 12073.
[2024-11-13 16:07:45,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12073 states, 12072 states have (on average 1.13460901259112) internal successors, (13697), 12072 states have internal predecessors, (13697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12073 states to 12073 states and 13697 transitions.
[2024-11-13 16:07:45,487 INFO L78 Accepts]: Start accepts. Automaton has 12073 states and 13697 transitions. Word has length 211
[2024-11-13 16:07:45,487 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:45,487 INFO L471 AbstractCegarLoop]: Abstraction has 12073 states and 13697 transitions.
[2024-11-13 16:07:45,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 12073 states and 13697 transitions.
[2024-11-13 16:07:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-11-13 16:07:45,502 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:45,502 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:45,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 16:07:45,502 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:45,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1916113714, now seen corresponding path program 1 times
[2024-11-13 16:07:45,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:45,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297883824]
[2024-11-13 16:07:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:45,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:07:46,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:46,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297883824]
[2024-11-13 16:07:46,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297883824] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 16:07:46,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193213580]
[2024-11-13 16:07:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:46,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 16:07:46,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:07:46,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 16:07:46,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 16:07:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:46,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-13 16:07:46,341 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 16:07:46,643 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-13 16:07:46,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 16:07:46,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193213580] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:46,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 16:07:46,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-13 16:07:46,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703154620]
[2024-11-13 16:07:46,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:46,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:46,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:46,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:46,645 INFO L87 Difference]: Start difference. First operand 12073 states and 13697 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:47,555 INFO L93 Difference]: Finished difference Result 24147 states and 27397 transitions.
[2024-11-13 16:07:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:47,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218
[2024-11-13 16:07:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:47,581 INFO L225 Difference]: With dead ends: 24147
[2024-11-13 16:07:47,582 INFO L226 Difference]: Without dead ends: 12076
[2024-11-13 16:07:47,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:47,594 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 108 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:47,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 95 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-13 16:07:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12076 states.
[2024-11-13 16:07:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12076 to 12073.
[2024-11-13 16:07:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12073 states, 12072 states have (on average 1.1297216699801194) internal successors, (13638), 12072 states have internal predecessors, (13638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12073 states to 12073 states and 13638 transitions.
[2024-11-13 16:07:47,787 INFO L78 Accepts]: Start accepts. Automaton has 12073 states and 13638 transitions. Word has length 218
[2024-11-13 16:07:47,788 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:47,788 INFO L471 AbstractCegarLoop]: Abstraction has 12073 states and 13638 transitions.
[2024-11-13 16:07:47,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:47,789 INFO L276 IsEmpty]: Start isEmpty. Operand 12073 states and 13638 transitions.
[2024-11-13 16:07:47,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2024-11-13 16:07:47,804 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:47,804 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:47,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-13 16:07:48,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-11-13 16:07:48,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:48,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash -222229343, now seen corresponding path program 1 times
[2024-11-13 16:07:48,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:48,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827116926]
[2024-11-13 16:07:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-13 16:07:48,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:48,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827116926]
[2024-11-13 16:07:48,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827116926] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 16:07:48,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621915003]
[2024-11-13 16:07:48,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:48,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 16:07:48,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:07:48,534 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 16:07:48,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-13 16:07:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:48,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-13 16:07:48,796 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 16:07:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2024-11-13 16:07:48,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 16:07:48,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621915003] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:48,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 16:07:48,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-13 16:07:48,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481780092]
[2024-11-13 16:07:48,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:48,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:48,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:48,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:48,910 INFO L87 Difference]: Start difference. First operand 12073 states and 13638 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:49,499 INFO L93 Difference]: Finished difference Result 24109 states and 27227 transitions.
[2024-11-13 16:07:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:49,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221
[2024-11-13 16:07:49,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:49,527 INFO L225 Difference]: With dead ends: 24109
[2024-11-13 16:07:49,528 INFO L226 Difference]: Without dead ends: 12038
[2024-11-13 16:07:49,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:49,546 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 276 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:49,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 31 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-13 16:07:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12038 states.
[2024-11-13 16:07:49,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12038 to 12038.
[2024-11-13 16:07:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12038 states, 12037 states have (on average 1.1213757580792556) internal successors, (13498), 12037 states have internal predecessors, (13498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12038 states to 12038 states and 13498 transitions.
[2024-11-13 16:07:49,744 INFO L78 Accepts]: Start accepts. Automaton has 12038 states and 13498 transitions. Word has length 221
[2024-11-13 16:07:49,744 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:49,744 INFO L471 AbstractCegarLoop]: Abstraction has 12038 states and 13498 transitions.
[2024-11-13 16:07:49,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 12038 states and 13498 transitions.
[2024-11-13 16:07:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280
[2024-11-13 16:07:49,764 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:49,764 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:49,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-13 16:07:49,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 16:07:49,965 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:49,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:49,966 INFO L85 PathProgramCache]: Analyzing trace with hash 623436923, now seen corresponding path program 1 times
[2024-11-13 16:07:49,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:49,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987092797]
[2024-11-13 16:07:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:49,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2024-11-13 16:07:50,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:50,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987092797]
[2024-11-13 16:07:50,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987092797] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 16:07:50,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733091230]
[2024-11-13 16:07:50,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:50,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 16:07:50,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:07:50,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 16:07:50,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-13 16:07:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:50,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-13 16:07:50,875 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 16:07:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-13 16:07:50,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 16:07:50,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733091230] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:50,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 16:07:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-13 16:07:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26927518]
[2024-11-13 16:07:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:50,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:50,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:50,973 INFO L87 Difference]: Start difference. First operand 12038 states and 13498 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:51,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:51,852 INFO L93 Difference]: Finished difference Result 28340 states and 32126 transitions.
[2024-11-13 16:07:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279
[2024-11-13 16:07:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:51,884 INFO L225 Difference]: With dead ends: 28340
[2024-11-13 16:07:51,884 INFO L226 Difference]: Without dead ends: 16304
[2024-11-13 16:07:51,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:51,894 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 163 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:51,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 114 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-13 16:07:51,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16304 states.
[2024-11-13 16:07:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16304 to 15895.
[2024-11-13 16:07:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15895 states, 15894 states have (on average 1.1070215175537939) internal successors, (17595), 15894 states have internal predecessors, (17595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15895 states to 15895 states and 17595 transitions.
[2024-11-13 16:07:52,091 INFO L78 Accepts]: Start accepts. Automaton has 15895 states and 17595 transitions. Word has length 279
[2024-11-13 16:07:52,092 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:52,092 INFO L471 AbstractCegarLoop]: Abstraction has 15895 states and 17595 transitions.
[2024-11-13 16:07:52,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 15895 states and 17595 transitions.
[2024-11-13 16:07:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282
[2024-11-13 16:07:52,116 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:52,118 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:52,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-13 16:07:52,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-13 16:07:52,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:52,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1461457719, now seen corresponding path program 1 times
[2024-11-13 16:07:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114343281]
[2024-11-13 16:07:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:52,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2024-11-13 16:07:52,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:52,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114343281]
[2024-11-13 16:07:52,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114343281] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 16:07:52,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709460950]
[2024-11-13 16:07:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:52,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 16:07:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:07:52,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 16:07:52,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-13 16:07:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:53,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-13 16:07:53,232 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 16:07:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-11-13 16:07:53,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 16:07:53,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709460950] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:53,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 16:07:53,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-13 16:07:53,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198500865]
[2024-11-13 16:07:53,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:53,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:53,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:53,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:53,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:53,512 INFO L87 Difference]: Start difference. First operand 15895 states and 17595 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:54,454 INFO L93 Difference]: Finished difference Result 35050 states and 38912 transitions.
[2024-11-13 16:07:54,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:54,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281
[2024-11-13 16:07:54,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:54,480 INFO L225 Difference]: With dead ends: 35050
[2024-11-13 16:07:54,481 INFO L226 Difference]: Without dead ends: 19157
[2024-11-13 16:07:54,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:07:54,494 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 58 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:54,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 337 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-13 16:07:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19157 states.
[2024-11-13 16:07:54,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19157 to 19143.
[2024-11-13 16:07:54,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19143 states, 19142 states have (on average 1.1075645178142306) internal successors, (21201), 19142 states have internal predecessors, (21201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:54,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 21201 transitions.
[2024-11-13 16:07:54,816 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 21201 transitions. Word has length 281
[2024-11-13 16:07:54,817 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:54,817 INFO L471 AbstractCegarLoop]: Abstraction has 19143 states and 21201 transitions.
[2024-11-13 16:07:54,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 21201 transitions.
[2024-11-13 16:07:54,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2024-11-13 16:07:54,836 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:54,837 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:54,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-13 16:07:55,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 16:07:55,038 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:55,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:55,038 INFO L85 PathProgramCache]: Analyzing trace with hash 990268631, now seen corresponding path program 1 times
[2024-11-13 16:07:55,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:55,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172238684]
[2024-11-13 16:07:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:55,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked.
[2024-11-13 16:07:55,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:55,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172238684]
[2024-11-13 16:07:55,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172238684] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:55,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:55,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 16:07:55,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4776629]
[2024-11-13 16:07:55,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:55,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:55,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:55,357 INFO L87 Difference]: Start difference. First operand 19143 states and 21201 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:56,168 INFO L93 Difference]: Finished difference Result 38298 states and 42427 transitions.
[2024-11-13 16:07:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:56,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312
[2024-11-13 16:07:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:56,192 INFO L225 Difference]: With dead ends: 38298
[2024-11-13 16:07:56,192 INFO L226 Difference]: Without dead ends: 19157
[2024-11-13 16:07:56,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:56,203 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 156 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:56,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 123 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 16:07:56,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19157 states.
[2024-11-13 16:07:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19157 to 19143.
[2024-11-13 16:07:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19143 states, 19142 states have (on average 1.1047957371225576) internal successors, (21148), 19142 states have internal predecessors, (21148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 21148 transitions.
[2024-11-13 16:07:56,426 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 21148 transitions. Word has length 312
[2024-11-13 16:07:56,426 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:56,426 INFO L471 AbstractCegarLoop]: Abstraction has 19143 states and 21148 transitions.
[2024-11-13 16:07:56,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 21148 transitions.
[2024-11-13 16:07:56,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318
[2024-11-13 16:07:56,445 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 16:07:56,445 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:56,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-13 16:07:56,445 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:07:56,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:07:56,446 INFO L85 PathProgramCache]: Analyzing trace with hash 371762194, now seen corresponding path program 1 times
[2024-11-13 16:07:56,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:07:56,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511784846]
[2024-11-13 16:07:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:07:56,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:07:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:07:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2024-11-13 16:07:56,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:07:56,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511784846]
[2024-11-13 16:07:56,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511784846] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:07:56,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:07:56,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:07:56,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986546026]
[2024-11-13 16:07:56,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:07:56,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:07:56,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:07:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:07:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:56,681 INFO L87 Difference]: Start difference. First operand 19143 states and 21148 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:07:57,490 INFO L93 Difference]: Finished difference Result 36646 states and 40367 transitions.
[2024-11-13 16:07:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 16:07:57,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317
[2024-11-13 16:07:57,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:07:57,492 INFO L225 Difference]: With dead ends: 36646
[2024-11-13 16:07:57,492 INFO L226 Difference]: Without dead ends: 0
[2024-11-13 16:07:57,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:07:57,502 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 235 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 16:07:57,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 312 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 16:07:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-13 16:07:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-13 16:07:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-13 16:07:57,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317
[2024-11-13 16:07:57,503 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:07:57,503 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-13 16:07:57,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:07:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-13 16:07:57,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-13 16:07:57,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-13 16:07:57,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-13 16:07:57,509 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:07:57,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-13 16:07:58,215 INFO L173 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-13 16:07:58,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:07:58 BoogieIcfgContainer
[2024-11-13 16:07:58,233 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-13 16:07:58,234 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-13 16:07:58,234 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-13 16:07:58,234 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-13 16:07:58,235 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:07:32" (3/4) ...
[2024-11-13 16:07:58,239 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-13 16:07:58,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-13 16:07:58,267 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-13 16:07:58,269 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-13 16:07:58,271 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-13 16:07:58,443 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml
[2024-11-13 16:07:58,443 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/witness.yml
[2024-11-13 16:07:58,443 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-13 16:07:58,444 INFO L158 Benchmark]: Toolchain (without parser) took 30403.40ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 111.5MB in the beginning and 350.6MB in the end (delta: -239.0MB). Peak memory consumption was 366.2MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,447 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-13 16:07:58,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1055.23ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 53.0MB in the end (delta: 58.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.46ms. Allocated memory is still 142.6MB. Free memory was 53.0MB in the beginning and 102.2MB in the end (delta: -49.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,448 INFO L158 Benchmark]: Boogie Preprocessor took 216.43ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 90.5MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,448 INFO L158 Benchmark]: RCFGBuilder took 2682.86ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 90.5MB in the beginning and 119.7MB in the end (delta: -29.2MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,448 INFO L158 Benchmark]: TraceAbstraction took 26062.31ms. Allocated memory was 176.2MB in the beginning and 755.0MB in the end (delta: 578.8MB). Free memory was 118.7MB in the beginning and 371.4MB in the end (delta: -252.7MB). Peak memory consumption was 325.9MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,448 INFO L158 Benchmark]: Witness Printer took 209.54ms. Allocated memory is still 755.0MB. Free memory was 371.4MB in the beginning and 350.6MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-13 16:07:58,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1055.23ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 53.0MB in the end (delta: 58.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 168.46ms. Allocated memory is still 142.6MB. Free memory was 53.0MB in the beginning and 102.2MB in the end (delta: -49.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 216.43ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 90.5MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* RCFGBuilder took 2682.86ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 90.5MB in the beginning and 119.7MB in the end (delta: -29.2MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 26062.31ms. Allocated memory was 176.2MB in the beginning and 755.0MB in the end (delta: 578.8MB). Free memory was 118.7MB in the beginning and 371.4MB in the end (delta: -252.7MB). Peak memory consumption was 325.9MB. Max. memory is 16.1GB.
* Witness Printer took 209.54ms. Allocated memory is still 755.0MB. Free memory was 371.4MB in the beginning and 350.6MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 1555]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.3s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2473 SdHoareTripleChecker+Valid, 11.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2473 mSDsluCounter, 2859 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 277 mSDsCounter, 1424 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7048 IncrementalHoareTripleChecker+Invalid, 8472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1424 mSolverCounterUnsat, 2582 mSDtfsCounter, 7048 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19143occurred in iteration=11, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 1097 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 3954 NumberOfCodeBlocks, 3954 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3937 ConstructedInterpolants, 0 QuantifiedInterpolants, 6979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1900 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1486/1510 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 1668]: Loop Invariant
Derived loop invariant: (((((((((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a27 == 1)) && (a3 == 0)) || ((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 <= 0))) || ((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 == 1))) || ((((a5 == 1) && (a26 <= 0)) && (a11 == 1)) && (a3 == 1))) || (((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a11 == 1)) && (a6 <= 0))) || ((((a5 == 1) && (a26 <= 0)) && (a11 <= 0)) && (a3 == 0))) || ((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a3 == 0))) || (((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a11 == 1)) && (a27 == 1))) || ((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a11 <= 0))) || (((((a5 == 1) && (a26 <= 0)) && (a11 == 1)) && (a27 == 1)) && (a3 == 0))) || ((((a26 == 1) && (a5 == 1)) && (a11 <= 0)) && (a3 == 0)))
RESULT: Ultimate proved your program to be correct!
[2024-11-13 16:07:58,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d49f68-939e-452e-b858-8188f6711397/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE