./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label27.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_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/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_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/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_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/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 70ecb2446f57553abe7468e1f232296cdba8856c774fb79cc62538ced35b338d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 13:46:54,998 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-13 13:46:55,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 13:46:55,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 13:46:55,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 13:46:55,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 13:46:55,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 13:46:55,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 13:46:55,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 13:46:55,134 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-13 13:46:55,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 13:46:55,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 13:46:55,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 13:46:55,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-13 13:46:55,136 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-13 13:46:55,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 13:46:55,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-13 13:46:55,136 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-13 13:46:55,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-13 13:46:55,138 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-13 13:46:55,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 13:46:55,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-13 13:46:55,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 13:46:55,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-13 13:46:55,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:46:55,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 13:46:55,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 13:46:55,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 13:46:55,140 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_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/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 -> 70ecb2446f57553abe7468e1f232296cdba8856c774fb79cc62538ced35b338d
[2024-11-13 13:46:55,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 13:46:55,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 13:46:55,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 13:46:55,544 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-13 13:46:55,545 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-13 13:46:55,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem10_label27.c
Unable to find full path for "g++"
[2024-11-13 13:46:57,901 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-13 13:46:58,384 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-13 13:46:58,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/sv-benchmarks/c/eca-rers2012/Problem10_label27.c
[2024-11-13 13:46:58,415 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/data/4d91ca6fd/8ecbea7318f94ab597056a3cc431fea4/FLAG6d3f4e03d
[2024-11-13 13:46:58,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/data/4d91ca6fd/8ecbea7318f94ab597056a3cc431fea4
[2024-11-13 13:46:58,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 13:46:58,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 13:46:58,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 13:46:58,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 13:46:58,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 13:46:58,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:46:58" (1/1) ...
[2024-11-13 13:46:58,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1f75ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:58, skipping insertion in model container
[2024-11-13 13:46:58,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:46:58" (1/1) ...
[2024-11-13 13:46:58,536 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-13 13:46:58,824 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_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/sv-benchmarks/c/eca-rers2012/Problem10_label27.c[6867,6880]
[2024-11-13 13:46:59,083 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:46:59,094 INFO L200 MainTranslator]: Completed pre-run
[2024-11-13 13:46:59,123 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_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/sv-benchmarks/c/eca-rers2012/Problem10_label27.c[6867,6880]
[2024-11-13 13:46:59,248 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:46:59,266 INFO L204 MainTranslator]: Completed translation
[2024-11-13 13:46:59,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59 WrapperNode
[2024-11-13 13:46:59,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 13:46:59,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 13:46:59,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 13:46:59,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 13:46:59,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,400 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597
[2024-11-13 13:46:59,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 13:46:59,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 13:46:59,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 13:46:59,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 13:46:59,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,475 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-13 13:46:59,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 13:46:59,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 13:46:59,533 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 13:46:59,533 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-13 13:46:59,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (1/1) ...
[2024-11-13 13:46:59,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:46:59,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:46:59,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 13:46:59,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 13:46:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 13:46:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 13:46:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 13:46:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 13:46:59,773 INFO L238 CfgBuilder]: Building ICFG
[2024-11-13 13:46:59,776 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 13:47:01,583 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live.
[2024-11-13 13:47:01,583 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-13 13:47:01,611 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 13:47:01,614 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 13:47:01,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:47:01 BoogieIcfgContainer
[2024-11-13 13:47:01,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 13:47:01,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 13:47:01,619 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 13:47:01,625 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-13 13:47:01,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:46:58" (1/3) ...
[2024-11-13 13:47:01,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c6020c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:47:01, skipping insertion in model container
[2024-11-13 13:47:01,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:46:59" (2/3) ...
[2024-11-13 13:47:01,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c6020c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:47:01, skipping insertion in model container
[2024-11-13 13:47:01,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:47:01" (3/3) ...
[2024-11-13 13:47:01,629 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c
[2024-11-13 13:47:01,648 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 13:47:01,654 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem10_label27.c that has 1 procedures, 206 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 13:47:01,725 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 13:47:01,740 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;@79050805, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 13:47:01,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 13:47:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 13:47:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-13 13:47:01,756 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:01,757 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]
[2024-11-13 13:47:01,757 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:01,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:01,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1645587038, now seen corresponding path program 1 times
[2024-11-13 13:47:01,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:01,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012006586]
[2024-11-13 13:47:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:01,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:02,664 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 13:47:02,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:02,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012006586]
[2024-11-13 13:47:02,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012006586] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:02,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:02,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:02,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485802619]
[2024-11-13 13:47:02,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:02,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 13:47:02,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:02,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 13:47:02,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:47:02,715 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 13:47:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:04,787 INFO L93 Difference]: Finished difference Result 696 states and 1248 transitions.
[2024-11-13 13:47:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-13 13:47:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60
[2024-11-13 13:47:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:04,808 INFO L225 Difference]: With dead ends: 696
[2024-11-13 13:47:04,808 INFO L226 Difference]: Without dead ends: 421
[2024-11-13 13:47:04,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 13:47:04,817 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 432 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:04,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 44 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-13 13:47:04,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states.
[2024-11-13 13:47:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421.
[2024-11-13 13:47:04,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3833333333333333) internal successors, (581), 420 states have internal predecessors, (581), 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 13:47:04,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 581 transitions.
[2024-11-13 13:47:04,925 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 581 transitions. Word has length 60
[2024-11-13 13:47:04,926 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:04,926 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 581 transitions.
[2024-11-13 13:47:04,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 13:47:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 581 transitions.
[2024-11-13 13:47:04,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2024-11-13 13:47:04,933 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:04,934 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, 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]
[2024-11-13 13:47:04,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 13:47:04,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:04,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash -527357108, now seen corresponding path program 1 times
[2024-11-13 13:47:04,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052410487]
[2024-11-13 13:47:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:04,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:47:06,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:06,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052410487]
[2024-11-13 13:47:06,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052410487] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:06,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:06,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788681770]
[2024-11-13 13:47:06,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 13:47:06,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 13:47:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:47:06,045 INFO L87 Difference]: Start difference. First operand 421 states and 581 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 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 13:47:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:06,991 INFO L93 Difference]: Finished difference Result 701 states and 1011 transitions.
[2024-11-13 13:47:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-13 13:47:06,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 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 13:47:06,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:06,996 INFO L225 Difference]: With dead ends: 701
[2024-11-13 13:47:06,996 INFO L226 Difference]: Without dead ends: 421
[2024-11-13 13:47:06,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 13:47:06,999 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 87 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:06,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 87 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-13 13:47:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states.
[2024-11-13 13:47:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421.
[2024-11-13 13:47:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3714285714285714) internal successors, (576), 420 states have internal predecessors, (576), 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 13:47:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 576 transitions.
[2024-11-13 13:47:07,046 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 576 transitions. Word has length 178
[2024-11-13 13:47:07,047 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:07,047 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 576 transitions.
[2024-11-13 13:47:07,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 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 13:47:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 576 transitions.
[2024-11-13 13:47:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205
[2024-11-13 13:47:07,058 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:07,059 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:47:07,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 13:47:07,059 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:07,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:07,060 INFO L85 PathProgramCache]: Analyzing trace with hash 374588124, now seen corresponding path program 1 times
[2024-11-13 13:47:07,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:07,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003342827]
[2024-11-13 13:47:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:07,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:47:07,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:07,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003342827]
[2024-11-13 13:47:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003342827] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:07,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:07,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:07,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938243259]
[2024-11-13 13:47:07,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:07,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:07,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:07,960 INFO L87 Difference]: Start difference. First operand 421 states and 576 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 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 13:47:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:08,780 INFO L93 Difference]: Finished difference Result 840 states and 1220 transitions.
[2024-11-13 13:47:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 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 204
[2024-11-13 13:47:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:08,785 INFO L225 Difference]: With dead ends: 840
[2024-11-13 13:47:08,785 INFO L226 Difference]: Without dead ends: 560
[2024-11-13 13:47:08,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 13:47:08,787 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:08,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 19 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-13 13:47:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states.
[2024-11-13 13:47:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560.
[2024-11-13 13:47:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3774597495527727) internal successors, (770), 559 states have internal predecessors, (770), 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 13:47:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 770 transitions.
[2024-11-13 13:47:08,813 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 770 transitions. Word has length 204
[2024-11-13 13:47:08,814 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:08,814 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 770 transitions.
[2024-11-13 13:47:08,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 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 13:47:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 770 transitions.
[2024-11-13 13:47:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2024-11-13 13:47:08,819 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:08,819 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:47:08,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 13:47:08,820 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:08,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash 209126068, now seen corresponding path program 1 times
[2024-11-13 13:47:08,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:08,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176403038]
[2024-11-13 13:47:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:08,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:47:09,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176403038]
[2024-11-13 13:47:09,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176403038] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:09,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:09,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:09,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039896369]
[2024-11-13 13:47:09,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:09,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:09,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:09,221 INFO L87 Difference]: Start difference. First operand 560 states and 770 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 13:47:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:09,966 INFO L93 Difference]: Finished difference Result 1257 states and 1803 transitions.
[2024-11-13 13:47:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 220
[2024-11-13 13:47:09,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:09,972 INFO L225 Difference]: With dead ends: 1257
[2024-11-13 13:47:09,972 INFO L226 Difference]: Without dead ends: 838
[2024-11-13 13:47:09,973 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 13:47:09,974 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 52 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:09,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 213 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 13:47:09,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states.
[2024-11-13 13:47:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838.
[2024-11-13 13:47:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2771804062126644) internal successors, (1069), 837 states have internal predecessors, (1069), 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 13:47:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1069 transitions.
[2024-11-13 13:47:10,006 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1069 transitions. Word has length 220
[2024-11-13 13:47:10,007 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:10,007 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1069 transitions.
[2024-11-13 13:47:10,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 13:47:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1069 transitions.
[2024-11-13 13:47:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230
[2024-11-13 13:47:10,012 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:10,012 INFO L215 NwaCegarLoop]: trace histogram [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, 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]
[2024-11-13 13:47:10,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 13:47:10,013 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:10,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:10,013 INFO L85 PathProgramCache]: Analyzing trace with hash 9792001, now seen corresponding path program 1 times
[2024-11-13 13:47:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590210034]
[2024-11-13 13:47:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-13 13:47:10,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:10,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590210034]
[2024-11-13 13:47:10,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590210034] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:10,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:10,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 13:47:10,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000011458]
[2024-11-13 13:47:10,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:10,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-13 13:47:10,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:10,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-13 13:47:10,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:47:10,880 INFO L87 Difference]: Start difference. First operand 838 states and 1069 transitions. Second operand has 7 states, 7 states have (on average 32.42857142857143) internal successors, (227), 6 states have internal predecessors, (227), 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 13:47:11,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:11,924 INFO L93 Difference]: Finished difference Result 1590 states and 2047 transitions.
[2024-11-13 13:47:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-13 13:47:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.42857142857143) internal successors, (227), 6 states have internal predecessors, (227), 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 229
[2024-11-13 13:47:11,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:11,929 INFO L225 Difference]: With dead ends: 1590
[2024-11-13 13:47:11,929 INFO L226 Difference]: Without dead ends: 838
[2024-11-13 13:47:11,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:47:11,932 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:11,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 30 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-13 13:47:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states.
[2024-11-13 13:47:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838.
[2024-11-13 13:47:11,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2724014336917562) internal successors, (1065), 837 states have internal predecessors, (1065), 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 13:47:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1065 transitions.
[2024-11-13 13:47:11,963 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1065 transitions. Word has length 229
[2024-11-13 13:47:11,963 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:11,963 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1065 transitions.
[2024-11-13 13:47:11,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.42857142857143) internal successors, (227), 6 states have internal predecessors, (227), 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 13:47:11,964 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1065 transitions.
[2024-11-13 13:47:11,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266
[2024-11-13 13:47:11,968 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:11,969 INFO L215 NwaCegarLoop]: trace histogram [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, 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]
[2024-11-13 13:47:11,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 13:47:11,969 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:11,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:11,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2055009945, now seen corresponding path program 1 times
[2024-11-13 13:47:11,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:11,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686057173]
[2024-11-13 13:47:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:47:12,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:12,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686057173]
[2024-11-13 13:47:12,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686057173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:12,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:12,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:12,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717414864]
[2024-11-13 13:47:12,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:12,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:12,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:12,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:12,370 INFO L87 Difference]: Start difference. First operand 838 states and 1065 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 13:47:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:13,161 INFO L93 Difference]: Finished difference Result 1674 states and 2188 transitions.
[2024-11-13 13:47:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:13,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 265
[2024-11-13 13:47:13,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:13,168 INFO L225 Difference]: With dead ends: 1674
[2024-11-13 13:47:13,168 INFO L226 Difference]: Without dead ends: 977
[2024-11-13 13:47:13,169 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 13:47:13,170 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:13,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 190 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 13:47:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states.
[2024-11-13 13:47:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838.
[2024-11-13 13:47:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2365591397849462) internal successors, (1035), 837 states have internal predecessors, (1035), 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 13:47:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1035 transitions.
[2024-11-13 13:47:13,201 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1035 transitions. Word has length 265
[2024-11-13 13:47:13,201 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:13,201 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1035 transitions.
[2024-11-13 13:47:13,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 13:47:13,202 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1035 transitions.
[2024-11-13 13:47:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2024-11-13 13:47:13,214 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:13,215 INFO L215 NwaCegarLoop]: trace histogram [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, 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]
[2024-11-13 13:47:13,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 13:47:13,215 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:13,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:13,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1603388908, now seen corresponding path program 1 times
[2024-11-13 13:47:13,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:13,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614093857]
[2024-11-13 13:47:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked.
[2024-11-13 13:47:13,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:13,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614093857]
[2024-11-13 13:47:13,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614093857] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:13,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:13,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:47:13,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519654064]
[2024-11-13 13:47:13,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:13,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:13,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:13,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:13,567 INFO L87 Difference]: Start difference. First operand 838 states and 1035 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 13:47:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:14,369 INFO L93 Difference]: Finished difference Result 1674 states and 2128 transitions.
[2024-11-13 13:47:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:14,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 284
[2024-11-13 13:47:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:14,377 INFO L225 Difference]: With dead ends: 1674
[2024-11-13 13:47:14,377 INFO L226 Difference]: Without dead ends: 977
[2024-11-13 13:47:14,379 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 13:47:14,380 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:14,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 77 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 13:47:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states.
[2024-11-13 13:47:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977.
[2024-11-13 13:47:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2223360655737705) internal successors, (1193), 976 states have internal predecessors, (1193), 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 13:47:14,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1193 transitions.
[2024-11-13 13:47:14,416 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1193 transitions. Word has length 284
[2024-11-13 13:47:14,417 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:14,417 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1193 transitions.
[2024-11-13 13:47:14,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 13:47:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1193 transitions.
[2024-11-13 13:47:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288
[2024-11-13 13:47:14,422 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:14,423 INFO L215 NwaCegarLoop]: trace histogram [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, 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]
[2024-11-13 13:47:14,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 13:47:14,423 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:14,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash 857578224, now seen corresponding path program 1 times
[2024-11-13 13:47:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:14,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677032623]
[2024-11-13 13:47:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 130 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:47:15,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:15,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677032623]
[2024-11-13 13:47:15,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677032623] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:47:15,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215735099]
[2024-11-13 13:47:15,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:15,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:47:15,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:47:15,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:47:15,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 13:47:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:15,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-13 13:47:15,593 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:47:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2024-11-13 13:47:16,163 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 13:47:16,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215735099] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:16,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 13:47:16,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2024-11-13 13:47:16,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643245903]
[2024-11-13 13:47:16,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:16,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:16,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:16,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:16,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:47:16,171 INFO L87 Difference]: Start difference. First operand 977 states and 1193 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 13:47:16,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:16,966 INFO L93 Difference]: Finished difference Result 2091 states and 2573 transitions.
[2024-11-13 13:47:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:16,967 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 287
[2024-11-13 13:47:16,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:16,973 INFO L225 Difference]: With dead ends: 2091
[2024-11-13 13:47:16,973 INFO L226 Difference]: Without dead ends: 1255
[2024-11-13 13:47:16,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-13 13:47:16,976 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 60 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:16,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 34 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 13:47:16,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states.
[2024-11-13 13:47:17,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255.
[2024-11-13 13:47:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.1523125996810208) internal successors, (1445), 1254 states have internal predecessors, (1445), 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 13:47:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1445 transitions.
[2024-11-13 13:47:17,016 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1445 transitions. Word has length 287
[2024-11-13 13:47:17,017 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:17,017 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1445 transitions.
[2024-11-13 13:47:17,017 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 13:47:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1445 transitions.
[2024-11-13 13:47:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339
[2024-11-13 13:47:17,025 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:17,025 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:47:17,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-13 13:47:17,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:47:17,226 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:17,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash 780561447, now seen corresponding path program 1 times
[2024-11-13 13:47:17,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:17,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316004664]
[2024-11-13 13:47:17,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:17,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2024-11-13 13:47:17,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:17,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316004664]
[2024-11-13 13:47:17,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316004664] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:17,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:17,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017714363]
[2024-11-13 13:47:17,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:17,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:17,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:17,702 INFO L87 Difference]: Start difference. First operand 1255 states and 1445 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 13:47:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:18,555 INFO L93 Difference]: Finished difference Result 3342 states and 3886 transitions.
[2024-11-13 13:47:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:18,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 338
[2024-11-13 13:47:18,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:18,567 INFO L225 Difference]: With dead ends: 3342
[2024-11-13 13:47:18,567 INFO L226 Difference]: Without dead ends: 2228
[2024-11-13 13:47:18,569 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 13:47:18,570 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 86 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:18,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 195 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-13 13:47:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states.
[2024-11-13 13:47:18,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1811.
[2024-11-13 13:47:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.1679558011049724) internal successors, (2114), 1810 states have internal predecessors, (2114), 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 13:47:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2114 transitions.
[2024-11-13 13:47:18,640 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2114 transitions. Word has length 338
[2024-11-13 13:47:18,641 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:18,641 INFO L471 AbstractCegarLoop]: Abstraction has 1811 states and 2114 transitions.
[2024-11-13 13:47:18,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 13:47:18,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2114 transitions.
[2024-11-13 13:47:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356
[2024-11-13 13:47:18,661 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:18,661 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:47:18,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-13 13:47:18,662 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:18,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:18,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1925597975, now seen corresponding path program 1 times
[2024-11-13 13:47:18,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:18,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49839541]
[2024-11-13 13:47:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:18,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2024-11-13 13:47:18,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:18,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49839541]
[2024-11-13 13:47:18,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49839541] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:18,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:18,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:18,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320003712]
[2024-11-13 13:47:18,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:18,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:18,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:18,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:18,977 INFO L87 Difference]: Start difference. First operand 1811 states and 2114 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 13:47:19,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:19,765 INFO L93 Difference]: Finished difference Result 4315 states and 5054 transitions.
[2024-11-13 13:47:19,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:19,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 355
[2024-11-13 13:47:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:19,779 INFO L225 Difference]: With dead ends: 4315
[2024-11-13 13:47:19,779 INFO L226 Difference]: Without dead ends: 2645
[2024-11-13 13:47:19,781 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 13:47:19,783 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:19,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 205 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 13:47:19,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states.
[2024-11-13 13:47:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645.
[2024-11-13 13:47:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.1471255673222391) internal successors, (3033), 2644 states have internal predecessors, (3033), 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 13:47:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3033 transitions.
[2024-11-13 13:47:19,904 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3033 transitions. Word has length 355
[2024-11-13 13:47:19,905 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:19,906 INFO L471 AbstractCegarLoop]: Abstraction has 2645 states and 3033 transitions.
[2024-11-13 13:47:19,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 13:47:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3033 transitions.
[2024-11-13 13:47:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369
[2024-11-13 13:47:19,918 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:47:19,918 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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]
[2024-11-13 13:47:19,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-13 13:47:19,919 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:47:19,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:47:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash 776840988, now seen corresponding path program 1 times
[2024-11-13 13:47:19,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:47:19,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214604282]
[2024-11-13 13:47:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:47:19,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:47:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:47:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked.
[2024-11-13 13:47:20,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:47:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214604282]
[2024-11-13 13:47:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214604282] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:47:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:47:20,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:47:20,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982169583]
[2024-11-13 13:47:20,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:47:20,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:47:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:47:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:47:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:47:20,852 INFO L87 Difference]: Start difference. First operand 2645 states and 3033 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 13:47:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:47:21,742 INFO L93 Difference]: Finished difference Result 3618 states and 4182 transitions.
[2024-11-13 13:47:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:47:21,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 368
[2024-11-13 13:47:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:47:21,744 INFO L225 Difference]: With dead ends: 3618
[2024-11-13 13:47:21,744 INFO L226 Difference]: Without dead ends: 0
[2024-11-13 13:47:21,750 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 13:47:21,751 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 88 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-13 13:47:21,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 49 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-13 13:47:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-13 13:47:21,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-13 13:47:21,752 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 13:47:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-13 13:47:21,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 368
[2024-11-13 13:47:21,752 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:47:21,752 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-13 13:47:21,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 13:47:21,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-13 13:47:21,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-13 13:47:21,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-13 13:47:21,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-13 13:47:21,776 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:47:21,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-13 13:47:22,251 INFO L173 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-13 13:47:22,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:47:22 BoogieIcfgContainer
[2024-11-13 13:47:22,283 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-13 13:47:22,284 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-13 13:47:22,285 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-13 13:47:22,285 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-13 13:47:22,286 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:47:01" (3/4) ...
[2024-11-13 13:47:22,289 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-13 13:47:22,312 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-13 13:47:22,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-13 13:47:22,317 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-13 13:47:22,318 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-13 13:47:22,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml
[2024-11-13 13:47:22,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/bin/uautomizer-verify-qhAvR1uOyd/witness.yml
[2024-11-13 13:47:22,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-13 13:47:22,523 INFO L158 Benchmark]: Toolchain (without parser) took 24070.06ms. Allocated memory was 100.7MB in the beginning and 327.2MB in the end (delta: 226.5MB). Free memory was 73.8MB in the beginning and 207.3MB in the end (delta: -133.5MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,523 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-13 13:47:22,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.30ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 46.5MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.15ms. Allocated memory is still 100.7MB. Free memory was 46.5MB in the beginning and 38.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,526 INFO L158 Benchmark]: Boogie Preprocessor took 130.82ms. Allocated memory is still 100.7MB. Free memory was 38.7MB in the beginning and 29.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,526 INFO L158 Benchmark]: RCFGBuilder took 2081.56ms. Allocated memory is still 100.7MB. Free memory was 29.3MB in the beginning and 64.3MB in the end (delta: -35.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,527 INFO L158 Benchmark]: TraceAbstraction took 20666.15ms. Allocated memory was 100.7MB in the beginning and 327.2MB in the end (delta: 226.5MB). Free memory was 63.6MB in the beginning and 219.4MB in the end (delta: -155.7MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,527 INFO L158 Benchmark]: Witness Printer took 237.17ms. Allocated memory is still 327.2MB. Free memory was 219.4MB in the beginning and 207.3MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-13 13:47:22,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.54ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 812.30ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 46.5MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 133.15ms. Allocated memory is still 100.7MB. Free memory was 46.5MB in the beginning and 38.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 130.82ms. Allocated memory is still 100.7MB. Free memory was 38.7MB in the beginning and 29.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 2081.56ms. Allocated memory is still 100.7MB. Free memory was 29.3MB in the beginning and 64.3MB in the end (delta: -35.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 20666.15ms. Allocated memory was 100.7MB in the beginning and 327.2MB in the end (delta: 226.5MB). Free memory was 63.6MB in the beginning and 219.4MB in the end (delta: -155.7MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB.
* Witness Printer took 237.17ms. Allocated memory is still 327.2MB. Free memory was 219.4MB in the beginning and 207.3MB in the end (delta: 12.0MB). 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: 194]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1133 SdHoareTripleChecker+Valid, 9.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1133 mSDsluCounter, 1143 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 799 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5083 IncrementalHoareTripleChecker+Invalid, 5882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 799 mSolverCounterUnsat, 1067 mSDtfsCounter, 5083 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 327 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=10, 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: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 3075 NumberOfCodeBlocks, 3075 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3063 ConstructedInterpolants, 0 QuantifiedInterpolants, 9649 SizeOfPredicates, 0 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 2650/2745 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: 592]: Loop Invariant
Derived loop invariant: (((((((a10 <= 0) && (14 == a4)) && (7 != a19)) && (a12 == 0)) || (((a10 == 1) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (14 == a4)) && (7 != a19)) && (a12 == 0))) || (((((a19 <= 9) && (0 <= a1)) && (14 == a4)) && (a10 == 2)) && (a12 == 0)))
RESULT: Ultimate proved your program to be correct!
[2024-11-13 13:47:22,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1a6b8a-b6e9-4279-8f86-a8a38b3b0dee/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