./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_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_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/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_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/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_a31cc13a-80ea-432d-acfa-f2bb10edf046/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 8e1a5ec7c69529be2d8c0f142d6c458fe9f526e0a4b1c8c2c339cb2c1b253dd3
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:35:04,837 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:35:04,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 22:35:04,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:35:04,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:35:05,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:35:05,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:35:05,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:35:05,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:35:05,004 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:35:05,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:35:05,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:35:05,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:35:05,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:35:05,007 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:35:05,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:35:05,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 22:35:05,007 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:35:05,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:35:05,008 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:35:05,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:35:05,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 22:35:05,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:35:05,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 22:35:05,009 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:35:05,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 22:35:05,009 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:35:05,009 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:35:05,009 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:35:05,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:35:05,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:35:05,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:35:05,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:35:05,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:35:05,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:35:05,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:35:05,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:35:05,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:35:05,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:35:05,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:35:05,012 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 22:35:05,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 22:35:05,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 22:35:05,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 22:35:05,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:35:05,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:35:05,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:35:05,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:35:05,014 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_a31cc13a-80ea-432d-acfa-f2bb10edf046/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 -> 8e1a5ec7c69529be2d8c0f142d6c458fe9f526e0a4b1c8c2c339cb2c1b253dd3
[2024-11-23 22:35:05,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:35:05,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:35:05,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:35:05,371 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:35:05,372 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:35:05,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/eca-rers2012/Problem16_label55.c
[2024-11-23 22:35:08,529 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/data/8b720ada1/98a0f178e74c45ca8ce69ed2cad8ce82/FLAGf29b101f4
[2024-11-23 22:35:09,100 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:35:09,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/sv-benchmarks/c/eca-rers2012/Problem16_label55.c
[2024-11-23 22:35:09,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/data/8b720ada1/98a0f178e74c45ca8ce69ed2cad8ce82/FLAGf29b101f4
[2024-11-23 22:35:09,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/data/8b720ada1/98a0f178e74c45ca8ce69ed2cad8ce82
[2024-11-23 22:35:09,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:35:09,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:35:09,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:35:09,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:35:09,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:35:09,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:09" (1/1) ...
[2024-11-23 22:35:09,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710a763f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:09, skipping insertion in model container
[2024-11-23 22:35:09,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:09" (1/1) ...
[2024-11-23 22:35:09,215 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:35:09,476 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_a31cc13a-80ea-432d-acfa-f2bb10edf046/sv-benchmarks/c/eca-rers2012/Problem16_label55.c[5995,6008]
[2024-11-23 22:35:09,856 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:35:09,868 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:35:09,893 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_a31cc13a-80ea-432d-acfa-f2bb10edf046/sv-benchmarks/c/eca-rers2012/Problem16_label55.c[5995,6008]
[2024-11-23 22:35:10,189 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:35:10,212 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:35:10,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10 WrapperNode
[2024-11-23 22:35:10,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:35:10,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:35:10,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:35:10,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:35:10,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,420 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769
[2024-11-23 22:35:10,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:35:10,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:35:10,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:35:10,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:35:10,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,559 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].
[2024-11-23 22:35:10,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,621 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:35:10,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:35:10,695 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:35:10,695 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:35:10,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (1/1) ...
[2024-11-23 22:35:10,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:35:10,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:10,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:35:10,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:35:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:35:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 22:35:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:35:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:35:10,872 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:35:10,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:35:14,215 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live.
[2024-11-23 22:35:14,216 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:35:14,246 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:35:14,250 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 22:35:14,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:14 BoogieIcfgContainer
[2024-11-23 22:35:14,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:35:14,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:35:14,257 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:35:14,263 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:35:14,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:09" (1/3) ...
[2024-11-23 22:35:14,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e400de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:14, skipping insertion in model container
[2024-11-23 22:35:14,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:10" (2/3) ...
[2024-11-23 22:35:14,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e400de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:14, skipping insertion in model container
[2024-11-23 22:35:14,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:14" (3/3) ...
[2024-11-23 22:35:14,269 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label55.c
[2024-11-23 22:35:14,286 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:35:14,288 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label55.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 22:35:14,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:35:14,397 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;@4caf6bd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:35:14,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 22:35:14,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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)
[2024-11-23 22:35:14,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-23 22:35:14,419 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:14,420 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]
[2024-11-23 22:35:14,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:14,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash -66916295, now seen corresponding path program 1 times
[2024-11-23 22:35:14,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:14,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018031360]
[2024-11-23 22:35:14,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:14,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:14,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018031360]
[2024-11-23 22:35:14,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018031360] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:14,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:14,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:35:14,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034879327]
[2024-11-23 22:35:14,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:14,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:14,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:14,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:14,933 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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)
[2024-11-23 22:35:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:17,204 INFO L93 Difference]: Finished difference Result 1122 states and 2103 transitions.
[2024-11-23 22:35:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:17,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 57
[2024-11-23 22:35:17,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:17,227 INFO L225 Difference]: With dead ends: 1122
[2024-11-23 22:35:17,228 INFO L226 Difference]: Without dead ends: 662
[2024-11-23 22:35:17,233 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
[2024-11-23 22:35:17,237 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 330 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:17,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 254 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2024-11-23 22:35:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states.
[2024-11-23 22:35:17,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662.
[2024-11-23 22:35:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.518910741301059) internal successors, (1004), 661 states have internal predecessors, (1004), 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)
[2024-11-23 22:35:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1004 transitions.
[2024-11-23 22:35:17,355 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1004 transitions. Word has length 57
[2024-11-23 22:35:17,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:17,356 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1004 transitions.
[2024-11-23 22:35:17,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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)
[2024-11-23 22:35:17,356 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1004 transitions.
[2024-11-23 22:35:17,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-23 22:35:17,362 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:17,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:17,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 22:35:17,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:17,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash 234836894, now seen corresponding path program 1 times
[2024-11-23 22:35:17,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:17,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523338956]
[2024-11-23 22:35:17,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:17,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:17,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:17,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523338956]
[2024-11-23 22:35:17,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523338956] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:17,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:17,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:35:17,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225857845]
[2024-11-23 22:35:17,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:17,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:17,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:17,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:17,925 INFO L87 Difference]: Start difference. First operand 662 states and 1004 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)
[2024-11-23 22:35:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:20,011 INFO L93 Difference]: Finished difference Result 1980 states and 3007 transitions.
[2024-11-23 22:35:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:20,013 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 125
[2024-11-23 22:35:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:20,018 INFO L225 Difference]: With dead ends: 1980
[2024-11-23 22:35:20,018 INFO L226 Difference]: Without dead ends: 1320
[2024-11-23 22:35:20,020 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
[2024-11-23 22:35:20,022 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 269 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:20,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 216 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-23 22:35:20,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states.
[2024-11-23 22:35:20,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320.
[2024-11-23 22:35:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.4564063684609552) internal successors, (1921), 1319 states have internal predecessors, (1921), 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)
[2024-11-23 22:35:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1921 transitions.
[2024-11-23 22:35:20,086 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1921 transitions. Word has length 125
[2024-11-23 22:35:20,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:20,087 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1921 transitions.
[2024-11-23 22:35:20,087 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)
[2024-11-23 22:35:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1921 transitions.
[2024-11-23 22:35:20,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-11-23 22:35:20,090 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:20,090 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:20,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 22:35:20,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:20,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash 300737271, now seen corresponding path program 1 times
[2024-11-23 22:35:20,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:20,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150727150]
[2024-11-23 22:35:20,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:20,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:20,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:20,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150727150]
[2024-11-23 22:35:20,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150727150] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:20,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:20,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:35:20,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110165496]
[2024-11-23 22:35:20,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:20,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:20,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:20,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:20,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:20,378 INFO L87 Difference]: Start difference. First operand 1320 states and 1921 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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)
[2024-11-23 22:35:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:22,237 INFO L93 Difference]: Finished difference Result 3954 states and 5758 transitions.
[2024-11-23 22:35:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:22,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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 136
[2024-11-23 22:35:22,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:22,249 INFO L225 Difference]: With dead ends: 3954
[2024-11-23 22:35:22,250 INFO L226 Difference]: Without dead ends: 2636
[2024-11-23 22:35:22,251 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
[2024-11-23 22:35:22,252 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 369 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:22,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:35:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states.
[2024-11-23 22:35:22,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636.
[2024-11-23 22:35:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.3248576850094878) internal successors, (3491), 2635 states have internal predecessors, (3491), 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)
[2024-11-23 22:35:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3491 transitions.
[2024-11-23 22:35:22,320 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3491 transitions. Word has length 136
[2024-11-23 22:35:22,320 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:22,320 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3491 transitions.
[2024-11-23 22:35:22,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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)
[2024-11-23 22:35:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3491 transitions.
[2024-11-23 22:35:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2024-11-23 22:35:22,324 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:22,324 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:22,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 22:35:22,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:22,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1026789817, now seen corresponding path program 1 times
[2024-11-23 22:35:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767184191]
[2024-11-23 22:35:22,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:22,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:22,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:22,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767184191]
[2024-11-23 22:35:22,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767184191] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:22,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:22,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:35:22,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117139974]
[2024-11-23 22:35:22,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:22,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:22,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:22,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:22,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:22,624 INFO L87 Difference]: Start difference. First operand 2636 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 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)
[2024-11-23 22:35:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:24,408 INFO L93 Difference]: Finished difference Result 6586 states and 8550 transitions.
[2024-11-23 22:35:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:24,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 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 188
[2024-11-23 22:35:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:24,424 INFO L225 Difference]: With dead ends: 6586
[2024-11-23 22:35:24,424 INFO L226 Difference]: Without dead ends: 3952
[2024-11-23 22:35:24,427 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
[2024-11-23 22:35:24,428 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 278 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:24,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 83 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-23 22:35:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states.
[2024-11-23 22:35:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952.
[2024-11-23 22:35:24,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.2171602126044039) internal successors, (4809), 3951 states have internal predecessors, (4809), 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)
[2024-11-23 22:35:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4809 transitions.
[2024-11-23 22:35:24,543 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4809 transitions. Word has length 188
[2024-11-23 22:35:24,545 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:24,545 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4809 transitions.
[2024-11-23 22:35:24,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 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)
[2024-11-23 22:35:24,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4809 transitions.
[2024-11-23 22:35:24,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293
[2024-11-23 22:35:24,553 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:24,553 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:24,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 22:35:24,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:24,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:24,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1964801853, now seen corresponding path program 1 times
[2024-11-23 22:35:24,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:24,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512397959]
[2024-11-23 22:35:24,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:24,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:25,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:25,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512397959]
[2024-11-23 22:35:25,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512397959] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:25,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:25,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:25,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360270482]
[2024-11-23 22:35:25,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:25,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:25,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:25,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:25,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:25,049 INFO L87 Difference]: Start difference. First operand 3952 states and 4809 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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)
[2024-11-23 22:35:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:26,912 INFO L93 Difference]: Finished difference Result 9547 states and 11836 transitions.
[2024-11-23 22:35:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:26,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 292
[2024-11-23 22:35:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:26,933 INFO L225 Difference]: With dead ends: 9547
[2024-11-23 22:35:26,933 INFO L226 Difference]: Without dead ends: 5597
[2024-11-23 22:35:26,937 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
[2024-11-23 22:35:26,938 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 285 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:26,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 247 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:35:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states.
[2024-11-23 22:35:27,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597.
[2024-11-23 22:35:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.2101501072194425) internal successors, (6772), 5596 states have internal predecessors, (6772), 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)
[2024-11-23 22:35:27,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6772 transitions.
[2024-11-23 22:35:27,051 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6772 transitions. Word has length 292
[2024-11-23 22:35:27,052 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:27,052 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6772 transitions.
[2024-11-23 22:35:27,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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)
[2024-11-23 22:35:27,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6772 transitions.
[2024-11-23 22:35:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303
[2024-11-23 22:35:27,057 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:27,058 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:27,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-23 22:35:27,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:27,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash 291298166, now seen corresponding path program 1 times
[2024-11-23 22:35:27,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:27,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326010487]
[2024-11-23 22:35:27,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:27,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:27,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:27,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326010487]
[2024-11-23 22:35:27,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326010487] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:27,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:27,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:27,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288576587]
[2024-11-23 22:35:27,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:27,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:35:27,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:27,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:35:27,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:35:27,888 INFO L87 Difference]: Start difference. First operand 5597 states and 6772 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 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)
[2024-11-23 22:35:29,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:29,815 INFO L93 Difference]: Finished difference Result 11521 states and 13883 transitions.
[2024-11-23 22:35:29,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:35:29,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 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 302
[2024-11-23 22:35:29,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:29,833 INFO L225 Difference]: With dead ends: 11521
[2024-11-23 22:35:29,833 INFO L226 Difference]: Without dead ends: 5926
[2024-11-23 22:35:29,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:35:29,840 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:29,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:35:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states.
[2024-11-23 22:35:29,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5926.
[2024-11-23 22:35:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5925 states have (on average 1.199493670886076) internal successors, (7107), 5925 states have internal predecessors, (7107), 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)
[2024-11-23 22:35:29,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 7107 transitions.
[2024-11-23 22:35:29,956 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 7107 transitions. Word has length 302
[2024-11-23 22:35:29,957 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:29,957 INFO L471 AbstractCegarLoop]: Abstraction has 5926 states and 7107 transitions.
[2024-11-23 22:35:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 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)
[2024-11-23 22:35:29,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 7107 transitions.
[2024-11-23 22:35:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390
[2024-11-23 22:35:29,967 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:29,967 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:29,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-23 22:35:29,968 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:29,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:29,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1616783716, now seen corresponding path program 1 times
[2024-11-23 22:35:29,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:29,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610103020]
[2024-11-23 22:35:29,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:29,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:30,848 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:30,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:30,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610103020]
[2024-11-23 22:35:30,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610103020] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:30,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:30,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 22:35:30,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95160990]
[2024-11-23 22:35:30,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:30,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 22:35:30,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:30,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 22:35:30,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-23 22:35:30,851 INFO L87 Difference]: Start difference. First operand 5926 states and 7107 transitions. Second operand has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 6 states have internal predecessors, (389), 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)
[2024-11-23 22:35:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:33,354 INFO L93 Difference]: Finished difference Result 11380 states and 13724 transitions.
[2024-11-23 22:35:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 22:35:33,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 6 states have internal predecessors, (389), 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 389
[2024-11-23 22:35:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:33,364 INFO L225 Difference]: With dead ends: 11380
[2024-11-23 22:35:33,364 INFO L226 Difference]: Without dead ends: 5597
[2024-11-23 22:35:33,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-23 22:35:33,369 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:33,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-23 22:35:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states.
[2024-11-23 22:35:33,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597.
[2024-11-23 22:35:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.0816654753395283) internal successors, (6053), 5596 states have internal predecessors, (6053), 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)
[2024-11-23 22:35:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6053 transitions.
[2024-11-23 22:35:33,460 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6053 transitions. Word has length 389
[2024-11-23 22:35:33,460 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:33,460 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6053 transitions.
[2024-11-23 22:35:33,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 6 states have internal predecessors, (389), 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)
[2024-11-23 22:35:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6053 transitions.
[2024-11-23 22:35:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397
[2024-11-23 22:35:33,466 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:33,467 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:33,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 22:35:33,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:33,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:33,468 INFO L85 PathProgramCache]: Analyzing trace with hash -457503876, now seen corresponding path program 1 times
[2024-11-23 22:35:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619942136]
[2024-11-23 22:35:33,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-23 22:35:33,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:33,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619942136]
[2024-11-23 22:35:33,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619942136] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:33,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:33,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341423841]
[2024-11-23 22:35:33,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:33,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:33,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:33,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:33,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:33,853 INFO L87 Difference]: Start difference. First operand 5597 states and 6053 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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)
[2024-11-23 22:35:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:35,060 INFO L93 Difference]: Finished difference Result 12837 states and 13987 transitions.
[2024-11-23 22:35:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:35,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 396
[2024-11-23 22:35:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:35,088 INFO L225 Difference]: With dead ends: 12837
[2024-11-23 22:35:35,088 INFO L226 Difference]: Without dead ends: 7571
[2024-11-23 22:35:35,092 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
[2024-11-23 22:35:35,092 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 292 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:35,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 40 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-23 22:35:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states.
[2024-11-23 22:35:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 7242.
[2024-11-23 22:35:35,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 1.0860378400773374) internal successors, (7864), 7241 states have internal predecessors, (7864), 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)
[2024-11-23 22:35:35,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 7864 transitions.
[2024-11-23 22:35:35,235 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 7864 transitions. Word has length 396
[2024-11-23 22:35:35,236 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:35,236 INFO L471 AbstractCegarLoop]: Abstraction has 7242 states and 7864 transitions.
[2024-11-23 22:35:35,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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)
[2024-11-23 22:35:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 7864 transitions.
[2024-11-23 22:35:35,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451
[2024-11-23 22:35:35,248 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:35,249 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:35,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-23 22:35:35,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:35,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:35,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1737546115, now seen corresponding path program 1 times
[2024-11-23 22:35:35,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:35,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108554450]
[2024-11-23 22:35:35,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:35,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked.
[2024-11-23 22:35:36,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108554450]
[2024-11-23 22:35:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108554450] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:35:36,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536778285]
[2024-11-23 22:35:36,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:36,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:36,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:36,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:35:36,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 22:35:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:36,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 22:35:36,299 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:35:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked.
[2024-11-23 22:35:37,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:35:37,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536778285] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:37,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:35:37,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-23 22:35:37,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634079509]
[2024-11-23 22:35:37,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:37,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:37,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:37,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:37,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:35:37,164 INFO L87 Difference]: Start difference. First operand 7242 states and 7864 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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)
[2024-11-23 22:35:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:38,336 INFO L93 Difference]: Finished difference Result 9218 states and 9900 transitions.
[2024-11-23 22:35:38,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:38,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 450
[2024-11-23 22:35:38,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:38,356 INFO L225 Difference]: With dead ends: 9218
[2024-11-23 22:35:38,356 INFO L226 Difference]: Without dead ends: 9216
[2024-11-23 22:35:38,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:35:38,359 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 116 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:38,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-23 22:35:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states.
[2024-11-23 22:35:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 7900.
[2024-11-23 22:35:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.0817825041144449) internal successors, (8545), 7899 states have internal predecessors, (8545), 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)
[2024-11-23 22:35:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 8545 transitions.
[2024-11-23 22:35:38,469 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 8545 transitions. Word has length 450
[2024-11-23 22:35:38,469 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:38,470 INFO L471 AbstractCegarLoop]: Abstraction has 7900 states and 8545 transitions.
[2024-11-23 22:35:38,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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)
[2024-11-23 22:35:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 8545 transitions.
[2024-11-23 22:35:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852
[2024-11-23 22:35:38,503 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:38,503 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:38,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 22:35:38,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:38,704 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:38,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash 508740985, now seen corresponding path program 1 times
[2024-11-23 22:35:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830956392]
[2024-11-23 22:35:38,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 968 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked.
[2024-11-23 22:35:39,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:39,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830956392]
[2024-11-23 22:35:39,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830956392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:39,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:39,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:39,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223228295]
[2024-11-23 22:35:39,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:40,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:35:40,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:40,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:35:40,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:35:40,002 INFO L87 Difference]: Start difference. First operand 7900 states and 8545 transitions. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 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)
[2024-11-23 22:35:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:42,018 INFO L93 Difference]: Finished difference Result 19088 states and 20669 transitions.
[2024-11-23 22:35:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:35:42,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 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 851
[2024-11-23 22:35:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:42,044 INFO L225 Difference]: With dead ends: 19088
[2024-11-23 22:35:42,044 INFO L226 Difference]: Without dead ends: 11519
[2024-11-23 22:35:42,051 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
[2024-11-23 22:35:42,051 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 270 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:42,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 91 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-23 22:35:42,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11519 states.
[2024-11-23 22:35:42,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11519 to 11190.
[2024-11-23 22:35:42,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 1.07802305836089) internal successors, (12062), 11189 states have internal predecessors, (12062), 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)
[2024-11-23 22:35:42,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 12062 transitions.
[2024-11-23 22:35:42,188 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 12062 transitions. Word has length 851
[2024-11-23 22:35:42,190 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:42,190 INFO L471 AbstractCegarLoop]: Abstraction has 11190 states and 12062 transitions.
[2024-11-23 22:35:42,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 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)
[2024-11-23 22:35:42,190 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 12062 transitions.
[2024-11-23 22:35:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890
[2024-11-23 22:35:42,206 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:42,208 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:42,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-23 22:35:42,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:42,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash 585018567, now seen corresponding path program 1 times
[2024-11-23 22:35:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:42,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489626221]
[2024-11-23 22:35:42,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 1140 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked.
[2024-11-23 22:35:43,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:43,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489626221]
[2024-11-23 22:35:43,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489626221] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:43,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:43,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469486115]
[2024-11-23 22:35:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:43,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:35:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:43,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:35:43,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:35:43,567 INFO L87 Difference]: Start difference. First operand 11190 states and 12062 transitions. Second operand has 4 states, 4 states have (on average 134.25) internal successors, (537), 3 states have internal predecessors, (537), 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)
[2024-11-23 22:35:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:44,502 INFO L93 Difference]: Finished difference Result 21720 states and 23455 transitions.
[2024-11-23 22:35:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:44,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 3 states have internal predecessors, (537), 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 889
[2024-11-23 22:35:44,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:44,522 INFO L225 Difference]: With dead ends: 21720
[2024-11-23 22:35:44,522 INFO L226 Difference]: Without dead ends: 11190
[2024-11-23 22:35:44,530 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
[2024-11-23 22:35:44,530 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:44,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 113 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 22:35:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states.
[2024-11-23 22:35:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 11190.
[2024-11-23 22:35:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 1.0777549378854232) internal successors, (12059), 11189 states have internal predecessors, (12059), 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)
[2024-11-23 22:35:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 12059 transitions.
[2024-11-23 22:35:44,668 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 12059 transitions. Word has length 889
[2024-11-23 22:35:44,669 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:44,669 INFO L471 AbstractCegarLoop]: Abstraction has 11190 states and 12059 transitions.
[2024-11-23 22:35:44,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 3 states have internal predecessors, (537), 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)
[2024-11-23 22:35:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 12059 transitions.
[2024-11-23 22:35:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951
[2024-11-23 22:35:44,684 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:44,685 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-23 22:35:44,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-23 22:35:44,685 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:44,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:44,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1374879225, now seen corresponding path program 1 times
[2024-11-23 22:35:44,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:44,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840114975]
[2024-11-23 22:35:44,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:44,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 1247 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked.
[2024-11-23 22:35:45,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:45,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840114975]
[2024-11-23 22:35:45,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840114975] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:45,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:45,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:45,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425325825]
[2024-11-23 22:35:45,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:45,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:45,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:45,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:45,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:45,483 INFO L87 Difference]: Start difference. First operand 11190 states and 12059 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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)
[2024-11-23 22:35:46,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:46,679 INFO L93 Difference]: Finished difference Result 24352 states and 26403 transitions.
[2024-11-23 22:35:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:46,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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 950
[2024-11-23 22:35:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:46,699 INFO L225 Difference]: With dead ends: 24352
[2024-11-23 22:35:46,699 INFO L226 Difference]: Without dead ends: 13822
[2024-11-23 22:35:46,707 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
[2024-11-23 22:35:46,708 INFO L435 NwaCegarLoop]: 431 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:46,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 437 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-23 22:35:46,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states.
[2024-11-23 22:35:46,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 13164.
[2024-11-23 22:35:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0672339132416622) internal successors, (14048), 13163 states have internal predecessors, (14048), 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)
[2024-11-23 22:35:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 14048 transitions.
[2024-11-23 22:35:46,924 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 14048 transitions. Word has length 950
[2024-11-23 22:35:46,926 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:46,926 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 14048 transitions.
[2024-11-23 22:35:46,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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)
[2024-11-23 22:35:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 14048 transitions.
[2024-11-23 22:35:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065
[2024-11-23 22:35:46,944 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:46,944 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:46,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-23 22:35:46,945 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:46,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:46,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1483424277, now seen corresponding path program 1 times
[2024-11-23 22:35:46,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:46,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480171499]
[2024-11-23 22:35:46,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:46,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2515 backedges. 1398 proven. 0 refuted. 0 times theorem prover too weak. 1117 trivial. 0 not checked.
[2024-11-23 22:35:47,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:47,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480171499]
[2024-11-23 22:35:47,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480171499] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:47,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:47,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:47,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852249852]
[2024-11-23 22:35:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:47,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:47,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:47,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:47,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:47,838 INFO L87 Difference]: Start difference. First operand 13164 states and 14048 transitions. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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)
[2024-11-23 22:35:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:48,985 INFO L93 Difference]: Finished difference Result 30603 states and 32764 transitions.
[2024-11-23 22:35:48,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 1064
[2024-11-23 22:35:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:48,999 INFO L225 Difference]: With dead ends: 30603
[2024-11-23 22:35:48,999 INFO L226 Difference]: Without dead ends: 16125
[2024-11-23 22:35:49,008 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
[2024-11-23 22:35:49,009 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 270 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:49,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 430 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-23 22:35:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states.
[2024-11-23 22:35:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 16125.
[2024-11-23 22:35:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0517861572810716) internal successors, (16959), 16124 states have internal predecessors, (16959), 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)
[2024-11-23 22:35:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16959 transitions.
[2024-11-23 22:35:49,198 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16959 transitions. Word has length 1064
[2024-11-23 22:35:49,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:49,200 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16959 transitions.
[2024-11-23 22:35:49,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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)
[2024-11-23 22:35:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16959 transitions.
[2024-11-23 22:35:49,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1543
[2024-11-23 22:35:49,231 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:35:49,232 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:49,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-23 22:35:49,233 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:35:49,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:49,234 INFO L85 PathProgramCache]: Analyzing trace with hash 861443405, now seen corresponding path program 1 times
[2024-11-23 22:35:49,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:35:49,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628919324]
[2024-11-23 22:35:49,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:49,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:35:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:50,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4225 backedges. 2353 proven. 0 refuted. 0 times theorem prover too weak. 1872 trivial. 0 not checked.
[2024-11-23 22:35:50,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:35:50,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628919324]
[2024-11-23 22:35:50,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628919324] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:50,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:50,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:35:50,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020593429]
[2024-11-23 22:35:50,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:50,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:50,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:35:50,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:50,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:50,404 INFO L87 Difference]: Start difference. First operand 16125 states and 16959 transitions. Second operand has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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)
[2024-11-23 22:35:51,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:35:51,451 INFO L93 Difference]: Finished difference Result 35207 states and 37093 transitions.
[2024-11-23 22:35:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:51,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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 1542
[2024-11-23 22:35:51,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:35:51,453 INFO L225 Difference]: With dead ends: 35207
[2024-11-23 22:35:51,453 INFO L226 Difference]: Without dead ends: 0
[2024-11-23 22:35:51,464 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
[2024-11-23 22:35:51,465 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 43 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:35:51,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 409 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-23 22:35:51,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-23 22:35:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-23 22:35:51,468 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)
[2024-11-23 22:35:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-23 22:35:51,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1542
[2024-11-23 22:35:51,468 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:35:51,468 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 22:35:51,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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)
[2024-11-23 22:35:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-23 22:35:51,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-23 22:35:51,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-23 22:35:51,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-23 22:35:51,477 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:51,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-23 22:35:52,259 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 22:35:52,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:35:52 BoogieIcfgContainer
[2024-11-23 22:35:52,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 22:35:52,277 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 22:35:52,278 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 22:35:52,278 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 22:35:52,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:14" (3/4) ...
[2024-11-23 22:35:52,280 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-23 22:35:52,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-23 22:35:52,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-23 22:35:52,308 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-23 22:35:52,310 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-23 22:35:52,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-23 22:35:52,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-23 22:35:52,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 22:35:52,510 INFO L158 Benchmark]: Toolchain (without parser) took 43364.84ms. Allocated memory was 117.4MB in the beginning and 906.0MB in the end (delta: 788.5MB). Free memory was 89.4MB in the beginning and 490.9MB in the end (delta: -401.5MB). Peak memory consumption was 389.9MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,510 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:35:52,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.56ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 78.9MB in the end (delta: 10.1MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 205.25ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 55.3MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,511 INFO L158 Benchmark]: Boogie Preprocessor took 272.43ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 55.3MB in the beginning and 287.5MB in the end (delta: -232.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,511 INFO L158 Benchmark]: RCFGBuilder took 3556.63ms. Allocated memory is still 352.3MB. Free memory was 287.5MB in the beginning and 184.3MB in the end (delta: 103.2MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,512 INFO L158 Benchmark]: TraceAbstraction took 38023.70ms. Allocated memory was 352.3MB in the beginning and 906.0MB in the end (delta: 553.6MB). Free memory was 182.1MB in the beginning and 512.3MB in the end (delta: -330.2MB). Peak memory consumption was 221.7MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,512 INFO L158 Benchmark]: Witness Printer took 231.24ms. Allocated memory is still 906.0MB. Free memory was 512.3MB in the beginning and 490.9MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 22:35:52,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1067.56ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 78.9MB in the end (delta: 10.1MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 205.25ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 55.3MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 272.43ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 55.3MB in the beginning and 287.5MB in the end (delta: -232.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
* RCFGBuilder took 3556.63ms. Allocated memory is still 352.3MB. Free memory was 287.5MB in the beginning and 184.3MB in the end (delta: 103.2MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 38023.70ms. Allocated memory was 352.3MB in the beginning and 906.0MB in the end (delta: 553.6MB). Free memory was 182.1MB in the beginning and 512.3MB in the end (delta: -330.2MB). Peak memory consumption was 221.7MB. Max. memory is 16.1GB.
* Witness Printer took 231.24ms. Allocated memory is still 906.0MB. Free memory was 512.3MB in the beginning and 490.9MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. 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: 188]: 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, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.1s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3445 SdHoareTripleChecker+Valid, 21.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3445 mSDsluCounter, 3171 SdHoareTripleChecker+Invalid, 18.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 2604 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13532 IncrementalHoareTripleChecker+Invalid, 16136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2604 mSolverCounterUnsat, 3022 mSDtfsCounter, 13532 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 491 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16125occurred in iteration=13, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 2632 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 8081 NumberOfCodeBlocks, 8081 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 8066 ConstructedInterpolants, 0 QuantifiedInterpolants, 22691 SizeOfPredicates, 0 NumberOfNonLiveVariables, 543 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 13066/13180 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: 1783]: Loop Invariant
Derived loop invariant: (((((((a16 == 8) || ((a15 <= 3) && (11 <= a16))) || (a16 == 9)) || ((a15 <= 3) && (a12 <= 7))) || ((0 <= ((long long) 87 + a18)) && (a15 <= 3))) || ((a15 <= 3) && (a12 == 8))) || ((a12 <= 6) && (a16 <= 11)))
RESULT: Ultimate proved your program to be correct!
[2024-11-23 22:35:52,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31cc13a-80ea-432d-acfa-f2bb10edf046/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