./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label55.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash faf917cd0a1eaa2ad9dee590b3f946754d69847d6ec93638a854081a172b37da
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:07:45,638 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:07:45,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 01:07:45,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:07:45,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:07:45,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:07:45,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:07:45,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:07:45,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:07:45,789 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:07:45,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:07:45,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:07:45,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:07:45,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:07:45,791 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:07:45,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:07:45,792 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:07:45,793 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:07:45,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:07:45,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:07:45,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:07:45,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:07:45,795 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:07:45,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:07:45,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:07:45,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:07:45,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:07:45,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:07:45,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:07:45,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:07:45,796 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_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faf917cd0a1eaa2ad9dee590b3f946754d69847d6ec93638a854081a172b37da
[2024-11-24 01:07:46,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:07:46,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:07:46,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:07:46,180 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:07:46,180 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:07:46,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/eca-rers2012/Problem01_label55.c
[2024-11-24 01:07:49,372 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/data/d0239e049/6eeb4a0740374db0beaa5c55e0d3744c/FLAG07fe1d568
[2024-11-24 01:07:49,873 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:07:49,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/sv-benchmarks/c/eca-rers2012/Problem01_label55.c
[2024-11-24 01:07:49,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/data/d0239e049/6eeb4a0740374db0beaa5c55e0d3744c/FLAG07fe1d568
[2024-11-24 01:07:49,984 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/data/d0239e049/6eeb4a0740374db0beaa5c55e0d3744c
[2024-11-24 01:07:49,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:07:49,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:07:49,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:07:49,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:07:50,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:07:50,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:49" (1/1) ...
[2024-11-24 01:07:50,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c37811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50, skipping insertion in model container
[2024-11-24 01:07:50,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:49" (1/1) ...
[2024-11-24 01:07:50,066 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:07:50,468 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_5c6f3ddd-7461-4281-b83d-63861004217c/sv-benchmarks/c/eca-rers2012/Problem01_label55.c[19349,19362]
[2024-11-24 01:07:50,510 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:07:50,526 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:07:50,629 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_5c6f3ddd-7461-4281-b83d-63861004217c/sv-benchmarks/c/eca-rers2012/Problem01_label55.c[19349,19362]
[2024-11-24 01:07:50,641 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:07:50,659 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:07:50,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50 WrapperNode
[2024-11-24 01:07:50,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:07:50,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:07:50,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:07:50,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:07:50,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,765 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657
[2024-11-24 01:07:50,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:07:50,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:07:50,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:07:50,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:07:50,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,823 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-24 01:07:50,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,853 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:07:50,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:07:50,892 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:07:50,896 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:07:50,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (1/1) ...
[2024-11-24 01:07:50,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:07:50,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:07:50,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:07:50,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:07:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:07:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:07:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:07:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:07:51,087 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:07:51,089 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:07:52,604 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live.
[2024-11-24 01:07:52,606 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:07:52,634 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:07:52,634 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-24 01:07:52,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:52 BoogieIcfgContainer
[2024-11-24 01:07:52,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:07:52,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:07:52,641 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:07:52,649 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:07:52,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:07:49" (1/3) ...
[2024-11-24 01:07:52,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ece3144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:52, skipping insertion in model container
[2024-11-24 01:07:52,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:50" (2/3) ...
[2024-11-24 01:07:52,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ece3144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:52, skipping insertion in model container
[2024-11-24 01:07:52,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:52" (3/3) ...
[2024-11-24 01:07:52,654 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem01_label55.c
[2024-11-24 01:07:52,676 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:07:52,680 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label55.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 01:07:52,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:07:52,789 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;@6dc23c03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:07:52,789 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 01:07:52,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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)
[2024-11-24 01:07:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-24 01:07:52,810 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:52,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:52,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:07:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:52,818 INFO L85 PathProgramCache]: Analyzing trace with hash -568054802, now seen corresponding path program 1 times
[2024-11-24 01:07:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168831968]
[2024-11-24 01:07:52,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:53,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:53,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168831968]
[2024-11-24 01:07:53,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168831968] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:53,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:53,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204944792]
[2024-11-24 01:07:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:53,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:53,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:53,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:53,719 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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)
[2024-11-24 01:07:54,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:54,843 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions.
[2024-11-24 01:07:54,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:54,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111
[2024-11-24 01:07:54,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:54,858 INFO L225 Difference]: With dead ends: 528
[2024-11-24 01:07:54,858 INFO L226 Difference]: Without dead ends: 266
[2024-11-24 01:07:54,862 INFO L434 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
[2024-11-24 01:07:54,864 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 84 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:54,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-24 01:07:54,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2024-11-24 01:07:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2024-11-24 01:07:54,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 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)
[2024-11-24 01:07:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions.
[2024-11-24 01:07:54,938 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 111
[2024-11-24 01:07:54,940 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:54,940 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions.
[2024-11-24 01:07:54,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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)
[2024-11-24 01:07:54,940 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions.
[2024-11-24 01:07:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2024-11-24 01:07:54,946 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:54,947 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:54,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:07:54,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:07:54,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:54,949 INFO L85 PathProgramCache]: Analyzing trace with hash -163687658, now seen corresponding path program 1 times
[2024-11-24 01:07:54,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:54,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23920744]
[2024-11-24 01:07:54,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:55,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23920744]
[2024-11-24 01:07:55,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23920744] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:55,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:55,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017906450]
[2024-11-24 01:07:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:55,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:55,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:55,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:55,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:55,216 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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)
[2024-11-24 01:07:55,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:55,932 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions.
[2024-11-24 01:07:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:55,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116
[2024-11-24 01:07:55,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:55,938 INFO L225 Difference]: With dead ends: 792
[2024-11-24 01:07:55,941 INFO L226 Difference]: Without dead ends: 528
[2024-11-24 01:07:55,942 INFO L434 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
[2024-11-24 01:07:55,943 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:55,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-24 01:07:55,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2024-11-24 01:07:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528.
[2024-11-24 01:07:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 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)
[2024-11-24 01:07:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions.
[2024-11-24 01:07:56,022 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 116
[2024-11-24 01:07:56,022 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:56,022 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions.
[2024-11-24 01:07:56,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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)
[2024-11-24 01:07:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions.
[2024-11-24 01:07:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-24 01:07:56,033 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:56,033 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:56,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:07:56,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:07:56,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash -390312305, now seen corresponding path program 1 times
[2024-11-24 01:07:56,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:56,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715489294]
[2024-11-24 01:07:56,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:56,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:56,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715489294]
[2024-11-24 01:07:56,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715489294] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:56,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:56,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765732058]
[2024-11-24 01:07:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:56,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:56,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:56,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:56,471 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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)
[2024-11-24 01:07:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:57,084 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions.
[2024-11-24 01:07:57,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:57,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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 126
[2024-11-24 01:07:57,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:57,089 INFO L225 Difference]: With dead ends: 1447
[2024-11-24 01:07:57,089 INFO L226 Difference]: Without dead ends: 921
[2024-11-24 01:07:57,090 INFO L434 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
[2024-11-24 01:07:57,091 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:57,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 56 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-24 01:07:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states.
[2024-11-24 01:07:57,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790.
[2024-11-24 01:07:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3219264892268694) internal successors, (1043), 789 states have internal predecessors, (1043), 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)
[2024-11-24 01:07:57,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions.
[2024-11-24 01:07:57,119 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 126
[2024-11-24 01:07:57,120 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:57,120 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions.
[2024-11-24 01:07:57,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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)
[2024-11-24 01:07:57,120 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions.
[2024-11-24 01:07:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-24 01:07:57,123 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:57,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:57,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 01:07:57,123 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:07:57,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1566292639, now seen corresponding path program 1 times
[2024-11-24 01:07:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:57,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701182248]
[2024-11-24 01:07:57,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:57,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-24 01:07:57,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:57,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701182248]
[2024-11-24 01:07:57,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701182248] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:57,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:57,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:57,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805474144]
[2024-11-24 01:07:57,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:57,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:57,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:57,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:57,393 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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)
[2024-11-24 01:07:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:57,905 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions.
[2024-11-24 01:07:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:57,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 127
[2024-11-24 01:07:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:57,909 INFO L225 Difference]: With dead ends: 1840
[2024-11-24 01:07:57,909 INFO L226 Difference]: Without dead ends: 1052
[2024-11-24 01:07:57,910 INFO L434 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
[2024-11-24 01:07:57,911 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:57,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 74 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 01:07:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states.
[2024-11-24 01:07:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921.
[2024-11-24 01:07:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2891304347826087) internal successors, (1186), 920 states have internal predecessors, (1186), 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)
[2024-11-24 01:07:57,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1186 transitions.
[2024-11-24 01:07:57,963 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1186 transitions. Word has length 127
[2024-11-24 01:07:57,964 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:57,964 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1186 transitions.
[2024-11-24 01:07:57,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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)
[2024-11-24 01:07:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1186 transitions.
[2024-11-24 01:07:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-24 01:07:57,967 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:57,967 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:57,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 01:07:57,967 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:07:57,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:57,968 INFO L85 PathProgramCache]: Analyzing trace with hash 186858855, now seen corresponding path program 1 times
[2024-11-24 01:07:57,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:57,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887234968]
[2024-11-24 01:07:57,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:57,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-24 01:07:58,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:58,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887234968]
[2024-11-24 01:07:58,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887234968] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:58,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:58,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941418235]
[2024-11-24 01:07:58,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:58,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:58,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:58,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:58,208 INFO L87 Difference]: Start difference. First operand 921 states and 1186 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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)
[2024-11-24 01:07:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:58,741 INFO L93 Difference]: Finished difference Result 2102 states and 2723 transitions.
[2024-11-24 01:07:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:58,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 131
[2024-11-24 01:07:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:58,746 INFO L225 Difference]: With dead ends: 2102
[2024-11-24 01:07:58,747 INFO L226 Difference]: Without dead ends: 1183
[2024-11-24 01:07:58,751 INFO L434 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
[2024-11-24 01:07:58,752 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:58,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 60 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 01:07:58,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states.
[2024-11-24 01:07:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183.
[2024-11-24 01:07:58,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2614213197969544) internal successors, (1491), 1182 states have internal predecessors, (1491), 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)
[2024-11-24 01:07:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1491 transitions.
[2024-11-24 01:07:58,789 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1491 transitions. Word has length 131
[2024-11-24 01:07:58,789 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:58,789 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1491 transitions.
[2024-11-24 01:07:58,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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)
[2024-11-24 01:07:58,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1491 transitions.
[2024-11-24 01:07:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-24 01:07:58,793 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:58,793 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:58,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:07:58,794 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:07:58,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash -350047557, now seen corresponding path program 1 times
[2024-11-24 01:07:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709581213]
[2024-11-24 01:07:58,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:58,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-24 01:07:59,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:59,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709581213]
[2024-11-24 01:07:59,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709581213] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:59,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:59,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:07:59,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252934352]
[2024-11-24 01:07:59,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:59,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:07:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:59,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:07:59,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:07:59,128 INFO L87 Difference]: Start difference. First operand 1183 states and 1491 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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)
[2024-11-24 01:08:00,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:08:00,006 INFO L93 Difference]: Finished difference Result 2888 states and 3588 transitions.
[2024-11-24 01:08:00,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:08:00,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 160
[2024-11-24 01:08:00,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:08:00,013 INFO L225 Difference]: With dead ends: 2888
[2024-11-24 01:08:00,013 INFO L226 Difference]: Without dead ends: 1576
[2024-11-24 01:08:00,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:08:00,021 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 274 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-24 01:08:00,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 39 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-24 01:08:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states.
[2024-11-24 01:08:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576.
[2024-11-24 01:08:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.135873015873016) internal successors, (1789), 1575 states have internal predecessors, (1789), 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)
[2024-11-24 01:08:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1789 transitions.
[2024-11-24 01:08:00,061 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1789 transitions. Word has length 160
[2024-11-24 01:08:00,061 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:08:00,061 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1789 transitions.
[2024-11-24 01:08:00,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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)
[2024-11-24 01:08:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1789 transitions.
[2024-11-24 01:08:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-24 01:08:00,065 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:08:00,065 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:08:00,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 01:08:00,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:08:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:08:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash -917422874, now seen corresponding path program 1 times
[2024-11-24 01:08:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:08:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196018337]
[2024-11-24 01:08:00,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:08:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:08:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:08:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked.
[2024-11-24 01:08:00,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:08:00,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196018337]
[2024-11-24 01:08:00,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196018337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:08:00,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:08:00,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:08:00,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773154054]
[2024-11-24 01:08:00,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:08:00,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:08:00,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:08:00,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:08:00,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:08:00,421 INFO L87 Difference]: Start difference. First operand 1576 states and 1789 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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)
[2024-11-24 01:08:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:08:01,216 INFO L93 Difference]: Finished difference Result 3412 states and 3900 transitions.
[2024-11-24 01:08:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:08:01,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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 177
[2024-11-24 01:08:01,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:08:01,224 INFO L225 Difference]: With dead ends: 3412
[2024-11-24 01:08:01,224 INFO L226 Difference]: Without dead ends: 1838
[2024-11-24 01:08:01,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:08:01,247 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 374 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-24 01:08:01,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 42 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-24 01:08:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states.
[2024-11-24 01:08:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838.
[2024-11-24 01:08:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1377245508982037) internal successors, (2090), 1837 states have internal predecessors, (2090), 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)
[2024-11-24 01:08:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2090 transitions.
[2024-11-24 01:08:01,297 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2090 transitions. Word has length 177
[2024-11-24 01:08:01,297 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:08:01,297 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2090 transitions.
[2024-11-24 01:08:01,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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)
[2024-11-24 01:08:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2090 transitions.
[2024-11-24 01:08:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-24 01:08:01,301 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:08:01,302 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:08:01,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 01:08:01,302 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:08:01,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:08:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1781562584, now seen corresponding path program 1 times
[2024-11-24 01:08:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:08:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4431116]
[2024-11-24 01:08:01,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:08:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:08:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:08:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-24 01:08:01,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:08:01,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4431116]
[2024-11-24 01:08:01,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4431116] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:08:01,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:08:01,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 01:08:01,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670255608]
[2024-11-24 01:08:01,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:08:01,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:08:01,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:08:01,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:08:01,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:08:01,648 INFO L87 Difference]: Start difference. First operand 1838 states and 2090 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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)
[2024-11-24 01:08:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:08:02,584 INFO L93 Difference]: Finished difference Result 3936 states and 4451 transitions.
[2024-11-24 01:08:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:08:02,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 177
[2024-11-24 01:08:02,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:08:02,594 INFO L225 Difference]: With dead ends: 3936
[2024-11-24 01:08:02,594 INFO L226 Difference]: Without dead ends: 2100
[2024-11-24 01:08:02,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:08:02,597 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 222 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-24 01:08:02,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 32 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-24 01:08:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states.
[2024-11-24 01:08:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838.
[2024-11-24 01:08:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.120304844855743) internal successors, (2058), 1837 states have internal predecessors, (2058), 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)
[2024-11-24 01:08:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2058 transitions.
[2024-11-24 01:08:02,653 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2058 transitions. Word has length 177
[2024-11-24 01:08:02,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:08:02,655 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2058 transitions.
[2024-11-24 01:08:02,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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)
[2024-11-24 01:08:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2058 transitions.
[2024-11-24 01:08:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2024-11-24 01:08:02,660 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:08:02,660 INFO L218 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:08:02,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 01:08:02,661 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:08:02,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:08:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash -213833625, now seen corresponding path program 1 times
[2024-11-24 01:08:02,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:08:02,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104429566]
[2024-11-24 01:08:02,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:08:02,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:08:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:08:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:08:02,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:08:02,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104429566]
[2024-11-24 01:08:02,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104429566] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:08:02,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:08:02,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:08:02,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705274448]
[2024-11-24 01:08:02,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:08:02,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:08:02,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:08:02,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:08:02,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:08:02,913 INFO L87 Difference]: Start difference. First operand 1838 states and 2058 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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)
[2024-11-24 01:08:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:08:03,489 INFO L93 Difference]: Finished difference Result 3936 states and 4387 transitions.
[2024-11-24 01:08:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:08:03,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 195
[2024-11-24 01:08:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:08:03,498 INFO L225 Difference]: With dead ends: 3936
[2024-11-24 01:08:03,498 INFO L226 Difference]: Without dead ends: 2100
[2024-11-24 01:08:03,500 INFO L434 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
[2024-11-24 01:08:03,501 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 88 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:08:03,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 177 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 01:08:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states.
[2024-11-24 01:08:03,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969.
[2024-11-24 01:08:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.0965447154471544) internal successors, (2158), 1968 states have internal predecessors, (2158), 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)
[2024-11-24 01:08:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2158 transitions.
[2024-11-24 01:08:03,556 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2158 transitions. Word has length 195
[2024-11-24 01:08:03,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:08:03,556 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2158 transitions.
[2024-11-24 01:08:03,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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)
[2024-11-24 01:08:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2158 transitions.
[2024-11-24 01:08:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-11-24 01:08:03,561 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:08:03,562 INFO L218 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, 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]
[2024-11-24 01:08:03,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-24 01:08:03,562 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:08:03,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:08:03,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1426363216, now seen corresponding path program 1 times
[2024-11-24 01:08:03,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:08:03,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998291286]
[2024-11-24 01:08:03,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:08:03,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:08:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:08:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked.
[2024-11-24 01:08:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:08:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998291286]
[2024-11-24 01:08:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998291286] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:08:03,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:08:03,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:08:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923438200]
[2024-11-24 01:08:03,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:08:03,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:08:03,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:08:03,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:08:03,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:08:03,817 INFO L87 Difference]: Start difference. First operand 1969 states and 2158 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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)
[2024-11-24 01:08:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:08:04,287 INFO L93 Difference]: Finished difference Result 2626 states and 2855 transitions.
[2024-11-24 01:08:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:08:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 217
[2024-11-24 01:08:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:08:04,297 INFO L225 Difference]: With dead ends: 2626
[2024-11-24 01:08:04,298 INFO L226 Difference]: Without dead ends: 2624
[2024-11-24 01:08:04,298 INFO L434 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
[2024-11-24 01:08:04,300 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 42 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:08:04,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 30 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:08:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states.
[2024-11-24 01:08:04,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 1969.
[2024-11-24 01:08:04,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.0955284552845528) internal successors, (2156), 1968 states have internal predecessors, (2156), 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)
[2024-11-24 01:08:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2156 transitions.
[2024-11-24 01:08:04,400 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2156 transitions. Word has length 217
[2024-11-24 01:08:04,401 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:08:04,401 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2156 transitions.
[2024-11-24 01:08:04,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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)
[2024-11-24 01:08:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2156 transitions.
[2024-11-24 01:08:04,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282
[2024-11-24 01:08:04,411 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:08:04,411 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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]
[2024-11-24 01:08:04,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-24 01:08:04,412 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:08:04,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:08:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1908530202, now seen corresponding path program 1 times
[2024-11-24 01:08:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:08:04,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801702495]
[2024-11-24 01:08:04,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:08:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:08:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:08:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 256 proven. 142 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-24 01:08:05,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:08:05,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801702495]
[2024-11-24 01:08:05,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801702495] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:08:05,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573034277]
[2024-11-24 01:08:05,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:08:05,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:08:05,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:08:05,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:08:05,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 01:08:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:08:05,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 01:08:05,827 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:08:06,162 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked.
[2024-11-24 01:08:06,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:08:06,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573034277] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:08:06,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:08:06,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-24 01:08:06,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788094236]
[2024-11-24 01:08:06,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:08:06,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:08:06,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:08:06,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:08:06,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-24 01:08:06,165 INFO L87 Difference]: Start difference. First operand 1969 states and 2156 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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)
[2024-11-24 01:08:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:08:06,727 INFO L93 Difference]: Finished difference Result 4327 states and 4718 transitions.
[2024-11-24 01:08:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:08:06,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281
[2024-11-24 01:08:06,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:08:06,728 INFO L225 Difference]: With dead ends: 4327
[2024-11-24 01:08:06,728 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 01:08:06,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-11-24 01:08:06,734 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 28 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:08:06,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 169 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 01:08:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 01:08:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 01:08:06,736 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)
[2024-11-24 01:08:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 01:08:06,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 281
[2024-11-24 01:08:06,737 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:08:06,737 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 01:08:06,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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)
[2024-11-24 01:08:06,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 01:08:06,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 01:08:06,740 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-24 01:08:06,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 01:08:06,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:08:06,944 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:08:06,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-24 01:08:07,280 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:08:07,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:08:07 BoogieIcfgContainer
[2024-11-24 01:08:07,305 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:08:07,305 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:08:07,306 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:08:07,306 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:08:07,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:52" (3/4) ...
[2024-11-24 01:08:07,310 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 01:08:07,334 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-24 01:08:07,339 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-24 01:08:07,339 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-24 01:08:07,340 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 01:08:07,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 01:08:07,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 01:08:07,535 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:08:07,536 INFO L158 Benchmark]: Toolchain (without parser) took 17547.92ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 92.0MB in the beginning and 357.1MB in the end (delta: -265.0MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB.
[2024-11-24 01:08:07,537 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:08:07,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 668.70ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 64.5MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-24 01:08:07,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.08ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 59.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:08:07,537 INFO L158 Benchmark]: Boogie Preprocessor took 125.18ms. Allocated memory is still 117.4MB. Free memory was 59.1MB in the beginning and 54.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:08:07,538 INFO L158 Benchmark]: RCFGBuilder took 1742.65ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 53.9MB in the beginning and 308.7MB in the end (delta: -254.8MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB.
[2024-11-24 01:08:07,538 INFO L158 Benchmark]: TraceAbstraction took 14663.97ms. Allocated memory was 352.3MB in the beginning and 427.8MB in the end (delta: 75.5MB). Free memory was 308.0MB in the beginning and 369.5MB in the end (delta: -61.5MB). Peak memory consumption was 241.7MB. Max. memory is 16.1GB.
[2024-11-24 01:08:07,538 INFO L158 Benchmark]: Witness Printer took 230.08ms. Allocated memory is still 427.8MB. Free memory was 369.5MB in the beginning and 357.1MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:08:07,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.54ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 668.70ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 64.5MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 104.08ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 59.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 125.18ms. Allocated memory is still 117.4MB. Free memory was 59.1MB in the beginning and 54.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 1742.65ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 53.9MB in the beginning and 308.7MB in the end (delta: -254.8MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 14663.97ms. Allocated memory was 352.3MB in the beginning and 427.8MB in the end (delta: 75.5MB). Free memory was 308.0MB in the beginning and 369.5MB in the end (delta: -61.5MB). Peak memory consumption was 241.7MB. Max. memory is 16.1GB.
* Witness Printer took 230.08ms. Allocated memory is still 427.8MB. Free memory was 369.5MB in the beginning and 357.1MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. 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: 519]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 11, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1663 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1663 mSDsluCounter, 752 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 815 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4228 IncrementalHoareTripleChecker+Invalid, 5043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 815 mSolverCounterUnsat, 683 mSDtfsCounter, 4228 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 312 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=9, InterpolantAutomatonStates: 36, 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, 1310 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2099 NumberOfCodeBlocks, 2099 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2087 ConstructedInterpolants, 0 QuantifiedInterpolants, 5232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 516 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 1268/1410 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 593]: Loop Invariant
Derived loop invariant: (((((a21 == 1) && (a16 <= 5)) || (a8 <= 13)) || ((a21 == 1) && (15 <= a8))) || ((a21 == 1) && (a20 == 1)))
RESULT: Ultimate proved your program to be correct!
[2024-11-24 01:08:07,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c6f3ddd-7461-4281-b83d-63861004217c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE