./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label01.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_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/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_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/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_60d61589-c6d2-4d28-adac-bc11bfc469a9/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 d6090139f17d215360e170ecc95bb73008b0f6956bdca2966cee2f9efad851e4
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:58:02,516 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:58:02,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 22:58:02,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:58:02,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:58:02,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:58:02,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:58:02,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:58:02,678 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:58:02,679 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:58:02,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:58:02,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:58:02,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:58:02,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:58:02,681 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:58:02,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:58:02,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 22:58:02,682 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:58:02,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:58:02,682 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:58:02,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:58:02,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 22:58:02,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:58:02,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 22:58:02,683 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:58:02,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 22:58:02,683 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:58:02,683 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:58:02,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:58:02,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:58:02,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:58:02,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:58:02,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:58:02,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:58:02,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:58:02,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:58:02,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:58:02,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:58:02,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:58:02,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:58:02,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:58:02,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:58:02,687 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_60d61589-c6d2-4d28-adac-bc11bfc469a9/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 -> d6090139f17d215360e170ecc95bb73008b0f6956bdca2966cee2f9efad851e4
[2024-11-23 22:58:03,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:58:03,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:58:03,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:58:03,027 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:58:03,027 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:58:03,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/eca-rers2012/Problem15_label01.c
[2024-11-23 22:58:05,965 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/data/b70ce26e1/d9e9cc73f6b647c38761c340e8fb6bfd/FLAG5e9031f2e
[2024-11-23 22:58:06,422 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:58:06,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/sv-benchmarks/c/eca-rers2012/Problem15_label01.c
[2024-11-23 22:58:06,451 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/data/b70ce26e1/d9e9cc73f6b647c38761c340e8fb6bfd/FLAG5e9031f2e
[2024-11-23 22:58:06,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/data/b70ce26e1/d9e9cc73f6b647c38761c340e8fb6bfd
[2024-11-23 22:58:06,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:58:06,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:58:06,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:58:06,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:58:06,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:58:06,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:06" (1/1) ...
[2024-11-23 22:58:06,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0eb58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:06, skipping insertion in model container
[2024-11-23 22:58:06,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:06" (1/1) ...
[2024-11-23 22:58:06,621 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:58:06,851 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_60d61589-c6d2-4d28-adac-bc11bfc469a9/sv-benchmarks/c/eca-rers2012/Problem15_label01.c[5470,5483]
[2024-11-23 22:58:07,313 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:58:07,324 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:58:07,354 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_60d61589-c6d2-4d28-adac-bc11bfc469a9/sv-benchmarks/c/eca-rers2012/Problem15_label01.c[5470,5483]
[2024-11-23 22:58:07,598 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:58:07,619 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:58:07,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07 WrapperNode
[2024-11-23 22:58:07,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:58:07,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:58:07,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:58:07,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:58:07,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:07,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:07,904 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759
[2024-11-23 22:58:07,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:58:07,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:58:07,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:58:07,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:58:07,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:07,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:07,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,064 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 22:58:08,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,162 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:58:08,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:58:08,285 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:58:08,285 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:58:08,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (1/1) ...
[2024-11-23 22:58:08,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:58:08,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:58:08,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:58:08,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:58:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:58:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 22:58:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:58:08,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:58:08,468 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:58:08,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:58:11,681 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live.
[2024-11-23 22:58:11,681 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:58:11,719 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:58:11,719 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 22:58:11,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:11 BoogieIcfgContainer
[2024-11-23 22:58:11,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:58:11,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:58:11,722 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:58:11,729 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:58:11,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:58:06" (1/3) ...
[2024-11-23 22:58:11,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552538d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:11, skipping insertion in model container
[2024-11-23 22:58:11,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:07" (2/3) ...
[2024-11-23 22:58:11,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552538d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:11, skipping insertion in model container
[2024-11-23 22:58:11,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:11" (3/3) ...
[2024-11-23 22:58:11,732 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem15_label01.c
[2024-11-23 22:58:11,748 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:58:11,751 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label01.c that has 1 procedures, 424 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 22:58:11,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:58:11,856 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;@78a76733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:58:11,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 22:58:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 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 22:58:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-11-23 22:58:11,871 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:11,871 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]
[2024-11-23 22:58:11,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:11,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times
[2024-11-23 22:58:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:11,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902053067]
[2024-11-23 22:58:11,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:11,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:12,353 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 22:58:12,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:12,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902053067]
[2024-11-23 22:58:12,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902053067] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:12,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:12,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:58:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37127887]
[2024-11-23 22:58:12,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:12,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:12,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:12,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:12,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:12,390 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 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 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 22:58:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:14,795 INFO L93 Difference]: Finished difference Result 1154 states and 2106 transitions.
[2024-11-23 22:58:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:14,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44
[2024-11-23 22:58:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:14,818 INFO L225 Difference]: With dead ends: 1154
[2024-11-23 22:58:14,821 INFO L226 Difference]: Without dead ends: 665
[2024-11-23 22:58:14,825 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 22:58:14,829 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 277 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:14,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 383 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-23 22:58:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states.
[2024-11-23 22:58:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663.
[2024-11-23 22:58:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 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 22:58:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions.
[2024-11-23 22:58:14,898 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 44
[2024-11-23 22:58:14,899 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:14,899 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions.
[2024-11-23 22:58:14,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 22:58:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions.
[2024-11-23 22:58:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-23 22:58:14,902 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:14,902 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, 1, 1, 1, 1, 1, 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 22:58:14,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 22:58:14,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:14,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:14,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1760666973, now seen corresponding path program 1 times
[2024-11-23 22:58:14,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:14,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142266967]
[2024-11-23 22:58:14,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:14,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:15,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:15,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142266967]
[2024-11-23 22:58:15,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142266967] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:15,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:15,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:58:15,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368079084]
[2024-11-23 22:58:15,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:15,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:15,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:15,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:15,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:15,511 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 22:58:17,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:17,296 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions.
[2024-11-23 22:58:17,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:17,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 109
[2024-11-23 22:58:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:17,306 INFO L225 Difference]: With dead ends: 1624
[2024-11-23 22:58:17,306 INFO L226 Difference]: Without dead ends: 963
[2024-11-23 22:58:17,308 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 22:58:17,310 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:17,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-23 22:58:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states.
[2024-11-23 22:58:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963.
[2024-11-23 22:58:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 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 22:58:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions.
[2024-11-23 22:58:17,347 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 109
[2024-11-23 22:58:17,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:17,348 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions.
[2024-11-23 22:58:17,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 22:58:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions.
[2024-11-23 22:58:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-23 22:58:17,351 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:17,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:17,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 22:58:17,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:17,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1367533996, now seen corresponding path program 1 times
[2024-11-23 22:58:17,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:17,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910990849]
[2024-11-23 22:58:17,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:17,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:17,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910990849]
[2024-11-23 22:58:17,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910990849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:17,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:17,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:58:17,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276517143]
[2024-11-23 22:58:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:17,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:17,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:17,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:17,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:17,664 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:58:19,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:19,571 INFO L93 Difference]: Finished difference Result 2229 states and 3186 transitions.
[2024-11-23 22:58:19,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:19,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114
[2024-11-23 22:58:19,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:19,578 INFO L225 Difference]: With dead ends: 2229
[2024-11-23 22:58:19,578 INFO L226 Difference]: Without dead ends: 1567
[2024-11-23 22:58:19,580 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 22:58:19,581 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:19,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 316 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:58:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states.
[2024-11-23 22:58:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1266.
[2024-11-23 22:58:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3051383399209486) internal successors, (1651), 1265 states have internal predecessors, (1651), 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 22:58:19,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1651 transitions.
[2024-11-23 22:58:19,615 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1651 transitions. Word has length 114
[2024-11-23 22:58:19,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:19,617 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1651 transitions.
[2024-11-23 22:58:19,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:58:19,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1651 transitions.
[2024-11-23 22:58:19,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-23 22:58:19,625 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:19,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:19,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 22:58:19,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:19,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:19,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1300079150, now seen corresponding path program 1 times
[2024-11-23 22:58:19,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:19,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805888896]
[2024-11-23 22:58:19,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:19,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:19,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:19,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805888896]
[2024-11-23 22:58:19,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805888896] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:19,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:19,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:58:19,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784021709]
[2024-11-23 22:58:19,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:19,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:58:19,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:19,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:58:19,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:58:19,919 INFO L87 Difference]: Start difference. First operand 1266 states and 1651 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 22:58:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:23,767 INFO L93 Difference]: Finished difference Result 4668 states and 6173 transitions.
[2024-11-23 22:58:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:58:23,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 135
[2024-11-23 22:58:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:23,780 INFO L225 Difference]: With dead ends: 4668
[2024-11-23 22:58:23,780 INFO L226 Difference]: Without dead ends: 3404
[2024-11-23 22:58:23,782 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 22:58:23,783 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 517 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:23,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 377 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-11-23 22:58:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states.
[2024-11-23 22:58:23,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3381.
[2024-11-23 22:58:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2366863905325445) internal successors, (4180), 3380 states have internal predecessors, (4180), 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 22:58:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4180 transitions.
[2024-11-23 22:58:23,861 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4180 transitions. Word has length 135
[2024-11-23 22:58:23,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:23,863 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4180 transitions.
[2024-11-23 22:58:23,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 22:58:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4180 transitions.
[2024-11-23 22:58:23,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-23 22:58:23,870 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:23,870 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, 2, 2, 2, 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]
[2024-11-23 22:58:23,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 22:58:23,870 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:23,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:23,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1749227933, now seen corresponding path program 1 times
[2024-11-23 22:58:23,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:23,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744901364]
[2024-11-23 22:58:23,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:23,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2024-11-23 22:58:24,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:24,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744901364]
[2024-11-23 22:58:24,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744901364] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:24,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:24,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:58:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775330240]
[2024-11-23 22:58:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:24,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:24,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:24,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:24,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:24,237 INFO L87 Difference]: Start difference. First operand 3381 states and 4180 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 22:58:25,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:25,941 INFO L93 Difference]: Finished difference Result 8563 states and 10754 transitions.
[2024-11-23 22:58:25,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:25,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 203
[2024-11-23 22:58:25,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:25,960 INFO L225 Difference]: With dead ends: 8563
[2024-11-23 22:58:25,960 INFO L226 Difference]: Without dead ends: 5483
[2024-11-23 22:58:25,964 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 22:58:25,967 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:25,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 337 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-23 22:58:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states.
[2024-11-23 22:58:26,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478.
[2024-11-23 22:58:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.16870549570933) internal successors, (6401), 5477 states have internal predecessors, (6401), 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 22:58:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6401 transitions.
[2024-11-23 22:58:26,111 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6401 transitions. Word has length 203
[2024-11-23 22:58:26,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:26,113 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6401 transitions.
[2024-11-23 22:58:26,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 22:58:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6401 transitions.
[2024-11-23 22:58:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306
[2024-11-23 22:58:26,120 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:26,121 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, 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]
[2024-11-23 22:58:26,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-23 22:58:26,121 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:26,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:26,122 INFO L85 PathProgramCache]: Analyzing trace with hash -92208819, now seen corresponding path program 1 times
[2024-11-23 22:58:26,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:26,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333907644]
[2024-11-23 22:58:26,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:26,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-23 22:58:27,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:27,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333907644]
[2024-11-23 22:58:27,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333907644] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:27,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:27,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:58:27,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606220213]
[2024-11-23 22:58:27,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:27,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:27,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:27,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:27,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:27,034 INFO L87 Difference]: Start difference. First operand 5478 states and 6401 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 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 22:58:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:28,524 INFO L93 Difference]: Finished difference Result 10655 states and 12489 transitions.
[2024-11-23 22:58:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:28,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 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 305
[2024-11-23 22:58:28,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:28,538 INFO L225 Difference]: With dead ends: 10655
[2024-11-23 22:58:28,538 INFO L226 Difference]: Without dead ends: 5478
[2024-11-23 22:58:28,543 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 22:58:28,544 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:28,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-23 22:58:28,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states.
[2024-11-23 22:58:28,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478.
[2024-11-23 22:58:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1676100054774512) internal successors, (6395), 5477 states have internal predecessors, (6395), 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 22:58:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6395 transitions.
[2024-11-23 22:58:28,637 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6395 transitions. Word has length 305
[2024-11-23 22:58:28,638 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:28,638 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6395 transitions.
[2024-11-23 22:58:28,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 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 22:58:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6395 transitions.
[2024-11-23 22:58:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332
[2024-11-23 22:58:28,643 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:28,644 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-23 22:58:28,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-23 22:58:28,644 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:28,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 691630654, now seen corresponding path program 1 times
[2024-11-23 22:58:28,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:28,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820715890]
[2024-11-23 22:58:28,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:28,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-11-23 22:58:29,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820715890]
[2024-11-23 22:58:29,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820715890] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:29,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:29,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:58:29,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341183301]
[2024-11-23 22:58:29,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:29,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:29,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:29,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:29,067 INFO L87 Difference]: Start difference. First operand 5478 states and 6395 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 22:58:31,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:31,089 INFO L93 Difference]: Finished difference Result 12758 states and 15193 transitions.
[2024-11-23 22:58:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:31,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 331
[2024-11-23 22:58:31,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:31,103 INFO L225 Difference]: With dead ends: 12758
[2024-11-23 22:58:31,104 INFO L226 Difference]: Without dead ends: 7581
[2024-11-23 22:58:31,108 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 22:58:31,109 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 272 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:31,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 671 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-23 22:58:31,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7581 states.
[2024-11-23 22:58:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7581 to 7579.
[2024-11-23 22:58:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7579 states, 7578 states have (on average 1.1421219319081553) internal successors, (8655), 7578 states have internal predecessors, (8655), 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 22:58:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 8655 transitions.
[2024-11-23 22:58:31,228 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 8655 transitions. Word has length 331
[2024-11-23 22:58:31,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:31,229 INFO L471 AbstractCegarLoop]: Abstraction has 7579 states and 8655 transitions.
[2024-11-23 22:58:31,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 22:58:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 8655 transitions.
[2024-11-23 22:58:31,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391
[2024-11-23 22:58:31,236 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:31,237 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1]
[2024-11-23 22:58:31,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 22:58:31,237 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:31,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:31,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1024558271, now seen corresponding path program 1 times
[2024-11-23 22:58:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076350432]
[2024-11-23 22:58:31,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:31,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked.
[2024-11-23 22:58:31,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:31,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076350432]
[2024-11-23 22:58:31,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076350432] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:31,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:31,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:58:31,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912239249]
[2024-11-23 22:58:31,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:31,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:31,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:31,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:31,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:31,751 INFO L87 Difference]: Start difference. First operand 7579 states and 8655 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 22:58:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:33,582 INFO L93 Difference]: Finished difference Result 16956 states and 19716 transitions.
[2024-11-23 22:58:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:33,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 390
[2024-11-23 22:58:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:33,606 INFO L225 Difference]: With dead ends: 16956
[2024-11-23 22:58:33,606 INFO L226 Difference]: Without dead ends: 9678
[2024-11-23 22:58:33,610 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 22:58:33,610 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 283 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:33,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 635 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:58:33,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9678 states.
[2024-11-23 22:58:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9678 to 8781.
[2024-11-23 22:58:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8780 states have (on average 1.1329157175398634) internal successors, (9947), 8780 states have internal predecessors, (9947), 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 22:58:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 9947 transitions.
[2024-11-23 22:58:33,727 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 9947 transitions. Word has length 390
[2024-11-23 22:58:33,728 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:33,728 INFO L471 AbstractCegarLoop]: Abstraction has 8781 states and 9947 transitions.
[2024-11-23 22:58:33,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 22:58:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 9947 transitions.
[2024-11-23 22:58:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392
[2024-11-23 22:58:33,735 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:33,735 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, 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, 1, 1, 1, 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 22:58:33,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-23 22:58:33,736 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:33,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash -289447111, now seen corresponding path program 1 times
[2024-11-23 22:58:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090610660]
[2024-11-23 22:58:33,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 83 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:35,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090610660]
[2024-11-23 22:58:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090610660] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:58:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493141376]
[2024-11-23 22:58:35,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:35,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:58:35,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:58:35,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:58:35,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 22:58:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:35,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 22:58:35,297 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:58:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:36,066 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:58:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:41,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493141376] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:58:41,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:58:41,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9
[2024-11-23 22:58:41,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906117338]
[2024-11-23 22:58:41,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:41,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:58:41,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:41,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:58:41,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90
[2024-11-23 22:58:41,689 INFO L87 Difference]: Start difference. First operand 8781 states and 9947 transitions. Second operand has 5 states, 5 states have (on average 78.2) internal successors, (391), 4 states have internal predecessors, (391), 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 22:58:47,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:47,377 INFO L93 Difference]: Finished difference Result 24494 states and 28334 transitions.
[2024-11-23 22:58:47,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:58:47,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.2) internal successors, (391), 4 states have internal predecessors, (391), 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 391
[2024-11-23 22:58:47,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:47,409 INFO L225 Difference]: With dead ends: 24494
[2024-11-23 22:58:47,410 INFO L226 Difference]: Without dead ends: 16014
[2024-11-23 22:58:47,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 784 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90
[2024-11-23 22:58:47,417 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 888 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 1242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:47,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 106 Invalid, 3097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2024-11-23 22:58:47,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16014 states.
[2024-11-23 22:58:47,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16014 to 15078.
[2024-11-23 22:58:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15078 states, 15077 states have (on average 1.160907342309478) internal successors, (17503), 15077 states have internal predecessors, (17503), 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 22:58:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15078 states to 15078 states and 17503 transitions.
[2024-11-23 22:58:47,699 INFO L78 Accepts]: Start accepts. Automaton has 15078 states and 17503 transitions. Word has length 391
[2024-11-23 22:58:47,700 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:47,700 INFO L471 AbstractCegarLoop]: Abstraction has 15078 states and 17503 transitions.
[2024-11-23 22:58:47,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.2) internal successors, (391), 4 states have internal predecessors, (391), 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 22:58:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15078 states and 17503 transitions.
[2024-11-23 22:58:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408
[2024-11-23 22:58:47,708 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:47,709 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:58:47,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-23 22:58:47,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:58:47,910 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:47,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:47,910 INFO L85 PathProgramCache]: Analyzing trace with hash 577355242, now seen corresponding path program 1 times
[2024-11-23 22:58:47,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:47,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869940385]
[2024-11-23 22:58:47,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:47,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:48,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:48,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869940385]
[2024-11-23 22:58:48,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869940385] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:48,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:48,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:58:48,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547380976]
[2024-11-23 22:58:48,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:48,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:48,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:48,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:48,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:48,286 INFO L87 Difference]: Start difference. First operand 15078 states and 17503 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 22:58:50,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:50,110 INFO L93 Difference]: Finished difference Result 33447 states and 39636 transitions.
[2024-11-23 22:58:50,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:50,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 407
[2024-11-23 22:58:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:50,135 INFO L225 Difference]: With dead ends: 33447
[2024-11-23 22:58:50,135 INFO L226 Difference]: Without dead ends: 18670
[2024-11-23 22:58:50,143 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 22:58:50,145 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 246 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:50,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 622 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-23 22:58:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18670 states.
[2024-11-23 22:58:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18670 to 17765.
[2024-11-23 22:58:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17765 states, 17764 states have (on average 1.1506417473541994) internal successors, (20440), 17764 states have internal predecessors, (20440), 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 22:58:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17765 states to 17765 states and 20440 transitions.
[2024-11-23 22:58:50,376 INFO L78 Accepts]: Start accepts. Automaton has 17765 states and 20440 transitions. Word has length 407
[2024-11-23 22:58:50,376 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:50,376 INFO L471 AbstractCegarLoop]: Abstraction has 17765 states and 20440 transitions.
[2024-11-23 22:58:50,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 22:58:50,377 INFO L276 IsEmpty]: Start isEmpty. Operand 17765 states and 20440 transitions.
[2024-11-23 22:58:50,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2024-11-23 22:58:50,386 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:50,387 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:50,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-23 22:58:50,388 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:50,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1611690732, now seen corresponding path program 1 times
[2024-11-23 22:58:50,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:50,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96157967]
[2024-11-23 22:58:50,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2024-11-23 22:58:50,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:50,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96157967]
[2024-11-23 22:58:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96157967] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:58:50,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:58:50,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:58:50,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551642238]
[2024-11-23 22:58:50,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:58:50,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:58:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:50,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:58:50,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:58:50,658 INFO L87 Difference]: Start difference. First operand 17765 states and 20440 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 22:58:52,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:58:52,625 INFO L93 Difference]: Finished difference Result 42723 states and 49427 transitions.
[2024-11-23 22:58:52,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:58:52,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 453
[2024-11-23 22:58:52,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:58:52,664 INFO L225 Difference]: With dead ends: 42723
[2024-11-23 22:58:52,664 INFO L226 Difference]: Without dead ends: 25259
[2024-11-23 22:58:52,678 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 22:58:52,679 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 283 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:58:52,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 621 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:58:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25259 states.
[2024-11-23 22:58:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25259 to 24945.
[2024-11-23 22:58:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24945 states, 24944 states have (on average 1.131213919178961) internal successors, (28217), 24944 states have internal predecessors, (28217), 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 22:58:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24945 states to 24945 states and 28217 transitions.
[2024-11-23 22:58:53,087 INFO L78 Accepts]: Start accepts. Automaton has 24945 states and 28217 transitions. Word has length 453
[2024-11-23 22:58:53,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:58:53,087 INFO L471 AbstractCegarLoop]: Abstraction has 24945 states and 28217 transitions.
[2024-11-23 22:58:53,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 22:58:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 24945 states and 28217 transitions.
[2024-11-23 22:58:53,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499
[2024-11-23 22:58:53,094 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:58:53,094 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:53,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-23 22:58:53,095 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:58:53,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:58:53,095 INFO L85 PathProgramCache]: Analyzing trace with hash 319650045, now seen corresponding path program 1 times
[2024-11-23 22:58:53,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:58:53,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891341719]
[2024-11-23 22:58:53,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:53,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:58:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 42 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:58:54,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:58:54,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891341719]
[2024-11-23 22:58:54,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891341719] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:58:54,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575341281]
[2024-11-23 22:58:54,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:58:54,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:58:54,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:58:54,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:58:54,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 22:58:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:58:54,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 22:58:54,323 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:58:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 236 proven. 106 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-23 22:58:55,199 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:58:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 236 proven. 106 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-23 22:58:58,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575341281] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:58:58,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 22:58:58,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8
[2024-11-23 22:58:58,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895107860]
[2024-11-23 22:58:58,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:58:58,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 22:58:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:58:58,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 22:58:58,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-23 22:58:58,583 INFO L87 Difference]: Start difference. First operand 24945 states and 28217 transitions. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 8 states have internal predecessors, (1062), 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 22:59:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:10,625 INFO L93 Difference]: Finished difference Result 90984 states and 102445 transitions.
[2024-11-23 22:59:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-23 22:59:10,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 8 states have internal predecessors, (1062), 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 498
[2024-11-23 22:59:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:10,696 INFO L225 Difference]: With dead ends: 90984
[2024-11-23 22:59:10,696 INFO L226 Difference]: Without dead ends: 66340
[2024-11-23 22:59:10,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506
[2024-11-23 22:59:10,713 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 5461 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 6232 mSolverCounterSat, 3093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5461 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 9325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3093 IncrementalHoareTripleChecker+Valid, 6232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:10,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5461 Valid, 252 Invalid, 9325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3093 Valid, 6232 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time]
[2024-11-23 22:59:10,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66340 states.
[2024-11-23 22:59:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66340 to 46492.
[2024-11-23 22:59:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46492 states, 46491 states have (on average 1.126863263857521) internal successors, (52389), 46491 states have internal predecessors, (52389), 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 22:59:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46492 states to 46492 states and 52389 transitions.
[2024-11-23 22:59:11,319 INFO L78 Accepts]: Start accepts. Automaton has 46492 states and 52389 transitions. Word has length 498
[2024-11-23 22:59:11,319 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:11,320 INFO L471 AbstractCegarLoop]: Abstraction has 46492 states and 52389 transitions.
[2024-11-23 22:59:11,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 8 states have internal predecessors, (1062), 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 22:59:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 46492 states and 52389 transitions.
[2024-11-23 22:59:11,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511
[2024-11-23 22:59:11,325 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:11,325 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:11,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-23 22:59:11,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:11,526 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:11,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:11,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1407121983, now seen corresponding path program 1 times
[2024-11-23 22:59:11,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:11,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5090082]
[2024-11-23 22:59:11,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:11,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 125 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:59:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5090082]
[2024-11-23 22:59:12,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5090082] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069144881]
[2024-11-23 22:59:12,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:12,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:12,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:59:12,594 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:59:12,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 22:59:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:12,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 22:59:12,822 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:59:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 42 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:59:13,593 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:59:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:59:14,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069144881] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:14,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:59:14,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12
[2024-11-23 22:59:14,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977114625]
[2024-11-23 22:59:14,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:59:14,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:59:14,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:14,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:59:14,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=83, Unknown=0, NotChecked=0, Total=156
[2024-11-23 22:59:14,832 INFO L87 Difference]: Start difference. First operand 46492 states and 52389 transitions. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 5 states have internal predecessors, (510), 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 22:59:20,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:20,132 INFO L93 Difference]: Finished difference Result 103495 states and 116247 transitions.
[2024-11-23 22:59:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:59:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 5 states have internal predecessors, (510), 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 510
[2024-11-23 22:59:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:20,177 INFO L225 Difference]: With dead ends: 103495
[2024-11-23 22:59:20,177 INFO L226 Difference]: Without dead ends: 57304
[2024-11-23 22:59:20,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1023 GetRequests, 1011 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=83, Unknown=0, NotChecked=0, Total=156
[2024-11-23 22:59:20,202 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 1542 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 1788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:20,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 105 Invalid, 3933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2024-11-23 22:59:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57304 states.
[2024-11-23 22:59:20,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57304 to 44996.
[2024-11-23 22:59:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44996 states, 44995 states have (on average 1.127036337370819) internal successors, (50711), 44995 states have internal predecessors, (50711), 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 22:59:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44996 states to 44996 states and 50711 transitions.
[2024-11-23 22:59:20,811 INFO L78 Accepts]: Start accepts. Automaton has 44996 states and 50711 transitions. Word has length 510
[2024-11-23 22:59:20,812 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:20,812 INFO L471 AbstractCegarLoop]: Abstraction has 44996 states and 50711 transitions.
[2024-11-23 22:59:20,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 5 states have internal predecessors, (510), 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 22:59:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 44996 states and 50711 transitions.
[2024-11-23 22:59:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529
[2024-11-23 22:59:20,817 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:20,817 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:20,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 22:59:21,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:21,018 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:21,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:21,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1290263051, now seen corresponding path program 1 times
[2024-11-23 22:59:21,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:21,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108925196]
[2024-11-23 22:59:21,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:21,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 493 proven. 39 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked.
[2024-11-23 22:59:21,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108925196]
[2024-11-23 22:59:21,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108925196] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891415061]
[2024-11-23 22:59:21,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:21,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:21,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:59:21,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:59:21,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 22:59:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:21,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 22:59:21,834 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:59:21,909 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked.
[2024-11-23 22:59:21,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:59:21,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891415061] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:59:21,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:59:21,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-23 22:59:21,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718598968]
[2024-11-23 22:59:21,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:59:21,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:59:21,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:21,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:59:21,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:59:21,912 INFO L87 Difference]: Start difference. First operand 44996 states and 50711 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:59:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:23,686 INFO L93 Difference]: Finished difference Result 95668 states and 108162 transitions.
[2024-11-23 22:59:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:59:23,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 528
[2024-11-23 22:59:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:23,726 INFO L225 Difference]: With dead ends: 95668
[2024-11-23 22:59:23,726 INFO L226 Difference]: Without dead ends: 50973
[2024-11-23 22:59:23,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:59:23,745 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 372 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:23,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 443 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-23 22:59:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50973 states.
[2024-11-23 22:59:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50973 to 49478.
[2024-11-23 22:59:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49478 states, 49477 states have (on average 1.114922085009196) internal successors, (55163), 49477 states have internal predecessors, (55163), 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 22:59:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49478 states to 49478 states and 55163 transitions.
[2024-11-23 22:59:24,260 INFO L78 Accepts]: Start accepts. Automaton has 49478 states and 55163 transitions. Word has length 528
[2024-11-23 22:59:24,260 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:24,260 INFO L471 AbstractCegarLoop]: Abstraction has 49478 states and 55163 transitions.
[2024-11-23 22:59:24,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 22:59:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 49478 states and 55163 transitions.
[2024-11-23 22:59:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603
[2024-11-23 22:59:24,268 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:24,268 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:24,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-23 22:59:24,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-23 22:59:24,472 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:24,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2016562453, now seen corresponding path program 1 times
[2024-11-23 22:59:24,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:24,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513567817]
[2024-11-23 22:59:24,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:24,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 640 proven. 39 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked.
[2024-11-23 22:59:25,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:25,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513567817]
[2024-11-23 22:59:25,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513567817] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:25,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875782876]
[2024-11-23 22:59:25,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:25,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:25,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:59:25,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:59:25,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 22:59:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:25,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 22:59:25,507 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:59:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked.
[2024-11-23 22:59:25,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:59:25,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875782876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:59:25,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:59:25,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-23 22:59:25,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783420548]
[2024-11-23 22:59:25,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:59:25,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:59:25,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:25,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:59:25,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:59:25,649 INFO L87 Difference]: Start difference. First operand 49478 states and 55163 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 22:59:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:27,943 INFO L93 Difference]: Finished difference Result 110013 states and 122747 transitions.
[2024-11-23 22:59:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:59:27,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 602
[2024-11-23 22:59:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:27,991 INFO L225 Difference]: With dead ends: 110013
[2024-11-23 22:59:27,991 INFO L226 Difference]: Without dead ends: 60836
[2024-11-23 22:59:28,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:59:28,014 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 268 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:28,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 250 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-23 22:59:28,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60836 states.
[2024-11-23 22:59:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60836 to 52461.
[2024-11-23 22:59:28,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52461 states, 52460 states have (on average 1.1090926420129623) internal successors, (58183), 52460 states have internal predecessors, (58183), 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 22:59:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52461 states to 52461 states and 58183 transitions.
[2024-11-23 22:59:28,670 INFO L78 Accepts]: Start accepts. Automaton has 52461 states and 58183 transitions. Word has length 602
[2024-11-23 22:59:28,670 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:28,670 INFO L471 AbstractCegarLoop]: Abstraction has 52461 states and 58183 transitions.
[2024-11-23 22:59:28,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 22:59:28,670 INFO L276 IsEmpty]: Start isEmpty. Operand 52461 states and 58183 transitions.
[2024-11-23 22:59:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608
[2024-11-23 22:59:28,674 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:28,675 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:28,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-23 22:59:28,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-23 22:59:28,875 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:28,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1393730838, now seen corresponding path program 1 times
[2024-11-23 22:59:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:28,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899907902]
[2024-11-23 22:59:28,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:28,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 650 proven. 39 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked.
[2024-11-23 22:59:29,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899907902]
[2024-11-23 22:59:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899907902] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431002886]
[2024-11-23 22:59:29,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:29,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:29,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:59:29,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:59:29,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 22:59:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:29,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 22:59:29,687 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:59:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked.
[2024-11-23 22:59:29,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:59:29,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431002886] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:59:29,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:59:29,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-11-23 22:59:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325040018]
[2024-11-23 22:59:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:59:29,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:59:29,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:29,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:59:29,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:59:29,799 INFO L87 Difference]: Start difference. First operand 52461 states and 58183 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 22:59:31,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:31,644 INFO L93 Difference]: Finished difference Result 103420 states and 114744 transitions.
[2024-11-23 22:59:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:59:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 607
[2024-11-23 22:59:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:31,689 INFO L225 Difference]: With dead ends: 103420
[2024-11-23 22:59:31,689 INFO L226 Difference]: Without dead ends: 51260
[2024-11-23 22:59:31,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:59:31,712 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 250 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:31,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 600 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-23 22:59:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51260 states.
[2024-11-23 22:59:32,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51260 to 50063.
[2024-11-23 22:59:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50063 states, 50062 states have (on average 1.0783628300906876) internal successors, (53985), 50062 states have internal predecessors, (53985), 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 22:59:32,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50063 states to 50063 states and 53985 transitions.
[2024-11-23 22:59:32,314 INFO L78 Accepts]: Start accepts. Automaton has 50063 states and 53985 transitions. Word has length 607
[2024-11-23 22:59:32,314 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:32,314 INFO L471 AbstractCegarLoop]: Abstraction has 50063 states and 53985 transitions.
[2024-11-23 22:59:32,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 22:59:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 50063 states and 53985 transitions.
[2024-11-23 22:59:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686
[2024-11-23 22:59:32,326 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:32,326 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-23 22:59:32,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-23 22:59:32,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-23 22:59:32,527 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:32,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:32,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1635363990, now seen corresponding path program 1 times
[2024-11-23 22:59:32,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:32,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143596499]
[2024-11-23 22:59:32,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:32,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 125 proven. 464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:59:33,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:33,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143596499]
[2024-11-23 22:59:33,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143596499] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:33,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452436572]
[2024-11-23 22:59:33,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:33,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:33,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:59:33,998 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:59:33,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 22:59:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:34,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-23 22:59:34,234 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:59:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 0 proven. 589 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:59:35,022 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:59:38,633 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 589 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:59:38,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452436572] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:38,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:59:38,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 13
[2024-11-23 22:59:38,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404048210]
[2024-11-23 22:59:38,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:59:38,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:59:38,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:38,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:59:38,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182
[2024-11-23 22:59:38,636 INFO L87 Difference]: Start difference. First operand 50063 states and 53985 transitions. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 5 states have internal predecessors, (685), 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 22:59:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:43,592 INFO L93 Difference]: Finished difference Result 104040 states and 112100 transitions.
[2024-11-23 22:59:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:59:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 5 states have internal predecessors, (685), 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 685
[2024-11-23 22:59:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:43,631 INFO L225 Difference]: With dead ends: 104040
[2024-11-23 22:59:43,631 INFO L226 Difference]: Without dead ends: 54278
[2024-11-23 22:59:43,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1361 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182
[2024-11-23 22:59:43,645 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 799 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 1234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1234 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:43,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 100 Invalid, 3333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1234 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-11-23 22:59:43,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54278 states.
[2024-11-23 22:59:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54278 to 49465.
[2024-11-23 22:59:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49465 states, 49464 states have (on average 1.0776120006469352) internal successors, (53303), 49464 states have internal predecessors, (53303), 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 22:59:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49465 states to 49465 states and 53303 transitions.
[2024-11-23 22:59:44,295 INFO L78 Accepts]: Start accepts. Automaton has 49465 states and 53303 transitions. Word has length 685
[2024-11-23 22:59:44,296 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:44,296 INFO L471 AbstractCegarLoop]: Abstraction has 49465 states and 53303 transitions.
[2024-11-23 22:59:44,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 5 states have internal predecessors, (685), 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 22:59:44,296 INFO L276 IsEmpty]: Start isEmpty. Operand 49465 states and 53303 transitions.
[2024-11-23 22:59:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805
[2024-11-23 22:59:44,319 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:44,320 INFO L218 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:44,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-23 22:59:44,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-23 22:59:44,521 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:44,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1706100167, now seen corresponding path program 1 times
[2024-11-23 22:59:44,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:44,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474122070]
[2024-11-23 22:59:44,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked.
[2024-11-23 22:59:45,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:45,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474122070]
[2024-11-23 22:59:45,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474122070] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:59:45,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:59:45,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:59:45,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560227753]
[2024-11-23 22:59:45,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:59:45,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:59:45,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:45,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:59:45,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:59:45,535 INFO L87 Difference]: Start difference. First operand 49465 states and 53303 transitions. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 22:59:47,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:47,669 INFO L93 Difference]: Finished difference Result 107609 states and 115811 transitions.
[2024-11-23 22:59:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:59:47,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 804
[2024-11-23 22:59:47,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:47,719 INFO L225 Difference]: With dead ends: 107609
[2024-11-23 22:59:47,720 INFO L226 Difference]: Without dead ends: 52764
[2024-11-23 22:59:47,742 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 22:59:47,742 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 141 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:47,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 661 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-23 22:59:47,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52764 states.
[2024-11-23 22:59:48,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52764 to 47973.
[2024-11-23 22:59:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47973 states, 47972 states have (on average 1.0617235053781373) internal successors, (50933), 47972 states have internal predecessors, (50933), 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 22:59:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47973 states to 47973 states and 50933 transitions.
[2024-11-23 22:59:48,386 INFO L78 Accepts]: Start accepts. Automaton has 47973 states and 50933 transitions. Word has length 804
[2024-11-23 22:59:48,387 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:48,387 INFO L471 AbstractCegarLoop]: Abstraction has 47973 states and 50933 transitions.
[2024-11-23 22:59:48,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 22:59:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 47973 states and 50933 transitions.
[2024-11-23 22:59:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825
[2024-11-23 22:59:48,406 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:48,407 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, 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, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:59:48,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-23 22:59:48,407 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:48,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash -432972242, now seen corresponding path program 1 times
[2024-11-23 22:59:48,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:48,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619662484]
[2024-11-23 22:59:48,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:48,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:59:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 962 proven. 39 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked.
[2024-11-23 22:59:49,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:59:49,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619662484]
[2024-11-23 22:59:49,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619662484] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:59:49,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037879472]
[2024-11-23 22:59:49,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:49,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:49,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:59:49,271 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:59:49,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 22:59:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:59:49,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 22:59:49,549 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:59:50,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 962 proven. 39 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked.
[2024-11-23 22:59:50,338 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:59:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 962 proven. 39 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked.
[2024-11-23 22:59:51,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037879472] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:59:51,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 22:59:51,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8
[2024-11-23 22:59:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97270468]
[2024-11-23 22:59:51,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:59:51,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 22:59:51,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:59:51,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 22:59:51,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-23 22:59:51,130 INFO L87 Difference]: Start difference. First operand 47973 states and 50933 transitions. Second operand has 9 states, 9 states have (on average 87.33333333333333) internal successors, (786), 8 states have internal predecessors, (786), 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 22:59:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:59:59,150 INFO L93 Difference]: Finished difference Result 102637 states and 108791 transitions.
[2024-11-23 22:59:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-23 22:59:59,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 87.33333333333333) internal successors, (786), 8 states have internal predecessors, (786), 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 824
[2024-11-23 22:59:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:59:59,191 INFO L225 Difference]: With dead ends: 102637
[2024-11-23 22:59:59,191 INFO L226 Difference]: Without dead ends: 38403
[2024-11-23 22:59:59,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1657 GetRequests, 1643 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240
[2024-11-23 22:59:59,217 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 3067 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 5326 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3067 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 5865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 5326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2024-11-23 22:59:59,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3067 Valid, 209 Invalid, 5865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 5326 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time]
[2024-11-23 22:59:59,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38403 states.
[2024-11-23 22:59:59,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38403 to 26719.
[2024-11-23 22:59:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26719 states, 26718 states have (on average 1.03248746163635) internal successors, (27586), 26718 states have internal predecessors, (27586), 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 22:59:59,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26719 states to 26719 states and 27586 transitions.
[2024-11-23 22:59:59,724 INFO L78 Accepts]: Start accepts. Automaton has 26719 states and 27586 transitions. Word has length 824
[2024-11-23 22:59:59,725 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:59:59,725 INFO L471 AbstractCegarLoop]: Abstraction has 26719 states and 27586 transitions.
[2024-11-23 22:59:59,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.33333333333333) internal successors, (786), 8 states have internal predecessors, (786), 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 22:59:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 26719 states and 27586 transitions.
[2024-11-23 22:59:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854
[2024-11-23 22:59:59,740 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:59:59,740 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-23 22:59:59,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-23 22:59:59,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:59:59,941 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:59:59,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:59:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1540025798, now seen corresponding path program 1 times
[2024-11-23 22:59:59,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:59:59,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472835402]
[2024-11-23 22:59:59,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:59:59,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:00:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:00:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 832 proven. 0 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked.
[2024-11-23 23:00:00,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:00:00,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472835402]
[2024-11-23 23:00:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472835402] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:00:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:00:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:00:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126743144]
[2024-11-23 23:00:00,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:00:00,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:00:00,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:00:00,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:00:00,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:00:00,448 INFO L87 Difference]: Start difference. First operand 26719 states and 27586 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 23:00:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:00:01,572 INFO L93 Difference]: Finished difference Result 53434 states and 55180 transitions.
[2024-11-23 23:00:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:00:01,573 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 853
[2024-11-23 23:00:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:00:01,603 INFO L225 Difference]: With dead ends: 53434
[2024-11-23 23:00:01,604 INFO L226 Difference]: Without dead ends: 27016
[2024-11-23 23:00:01,618 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 23:00:01,619 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 435 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 23:00:01,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 68 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 23:00:01,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27016 states.
[2024-11-23 23:00:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27016 to 26717.
[2024-11-23 23:00:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26717 states, 26716 states have (on average 1.0324150321904477) internal successors, (27582), 26716 states have internal predecessors, (27582), 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 23:00:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26717 states to 26717 states and 27582 transitions.
[2024-11-23 23:00:01,888 INFO L78 Accepts]: Start accepts. Automaton has 26717 states and 27582 transitions. Word has length 853
[2024-11-23 23:00:01,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:00:01,889 INFO L471 AbstractCegarLoop]: Abstraction has 26717 states and 27582 transitions.
[2024-11-23 23:00:01,889 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 23:00:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 26717 states and 27582 transitions.
[2024-11-23 23:00:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879
[2024-11-23 23:00:01,899 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:00:01,899 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:01,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-23 23:00:01,899 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:00:01,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:00:01,899 INFO L85 PathProgramCache]: Analyzing trace with hash -608480507, now seen corresponding path program 1 times
[2024-11-23 23:00:01,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:00:01,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283286247]
[2024-11-23 23:00:01,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:00:01,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:00:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:00:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 1056 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked.
[2024-11-23 23:00:02,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:00:02,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283286247]
[2024-11-23 23:00:02,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283286247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:00:02,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:00:02,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:00:02,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057229537]
[2024-11-23 23:00:02,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:00:02,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:00:02,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:00:02,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:00:02,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:00:02,523 INFO L87 Difference]: Start difference. First operand 26717 states and 27582 transitions. Second operand has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 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 23:00:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:00:04,249 INFO L93 Difference]: Finished difference Result 54629 states and 56421 transitions.
[2024-11-23 23:00:04,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:00:04,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 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 878
[2024-11-23 23:00:04,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:00:04,270 INFO L225 Difference]: With dead ends: 54629
[2024-11-23 23:00:04,270 INFO L226 Difference]: Without dead ends: 28213
[2024-11-23 23:00:04,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:00:04,280 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 624 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:00:04,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 420 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-23 23:00:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28213 states.
[2024-11-23 23:00:04,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28213 to 26417.
[2024-11-23 23:00:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26417 states, 26416 states have (on average 1.026953361599031) internal successors, (27128), 26416 states have internal predecessors, (27128), 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 23:00:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26417 states to 26417 states and 27128 transitions.
[2024-11-23 23:00:04,514 INFO L78 Accepts]: Start accepts. Automaton has 26417 states and 27128 transitions. Word has length 878
[2024-11-23 23:00:04,515 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:00:04,515 INFO L471 AbstractCegarLoop]: Abstraction has 26417 states and 27128 transitions.
[2024-11-23 23:00:04,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 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 23:00:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 26417 states and 27128 transitions.
[2024-11-23 23:00:04,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936
[2024-11-23 23:00:04,532 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:00:04,532 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:04,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-23 23:00:04,533 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:00:04,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:00:04,533 INFO L85 PathProgramCache]: Analyzing trace with hash 891566358, now seen corresponding path program 1 times
[2024-11-23 23:00:04,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:00:04,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699489174]
[2024-11-23 23:00:04,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:00:04,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:00:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:00:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 911 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked.
[2024-11-23 23:00:04,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:00:04,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699489174]
[2024-11-23 23:00:04,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699489174] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:00:04,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:00:04,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:00:04,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571663429]
[2024-11-23 23:00:04,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:00:04,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:00:04,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:00:04,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:00:04,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:00:04,918 INFO L87 Difference]: Start difference. First operand 26417 states and 27128 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 23:00:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:00:06,037 INFO L93 Difference]: Finished difference Result 53124 states and 54549 transitions.
[2024-11-23 23:00:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:00:06,037 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 935
[2024-11-23 23:00:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:00:06,057 INFO L225 Difference]: With dead ends: 53124
[2024-11-23 23:00:06,057 INFO L226 Difference]: Without dead ends: 27008
[2024-11-23 23:00:06,068 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 23:00:06,070 INFO L435 NwaCegarLoop]: 431 mSDtfsCounter, 338 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 23:00:06,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 457 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 23:00:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27008 states.
[2024-11-23 23:00:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27008 to 22219.
[2024-11-23 23:00:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22219 states, 22218 states have (on average 1.0238545323611485) internal successors, (22748), 22218 states have internal predecessors, (22748), 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 23:00:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22219 states to 22219 states and 22748 transitions.
[2024-11-23 23:00:06,284 INFO L78 Accepts]: Start accepts. Automaton has 22219 states and 22748 transitions. Word has length 935
[2024-11-23 23:00:06,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:00:06,284 INFO L471 AbstractCegarLoop]: Abstraction has 22219 states and 22748 transitions.
[2024-11-23 23:00:06,284 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 23:00:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 22219 states and 22748 transitions.
[2024-11-23 23:00:06,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125
[2024-11-23 23:00:06,304 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:00:06,305 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-23 23:00:06,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-23 23:00:06,305 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:00:06,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:00:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1609967201, now seen corresponding path program 1 times
[2024-11-23 23:00:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:00:06,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547981872]
[2024-11-23 23:00:06,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:00:06,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:00:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:00:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2226 backedges. 1416 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked.
[2024-11-23 23:00:07,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:00:07,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547981872]
[2024-11-23 23:00:07,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547981872] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:00:07,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:00:07,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:00:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374599136]
[2024-11-23 23:00:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:00:07,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:00:07,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:00:07,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:00:07,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:00:07,274 INFO L87 Difference]: Start difference. First operand 22219 states and 22748 transitions. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 23:00:08,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:00:08,289 INFO L93 Difference]: Finished difference Result 37522 states and 38421 transitions.
[2024-11-23 23:00:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:00:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 1124
[2024-11-23 23:00:08,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:00:08,291 INFO L225 Difference]: With dead ends: 37522
[2024-11-23 23:00:08,291 INFO L226 Difference]: Without dead ends: 0
[2024-11-23 23:00:08,299 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 23:00:08,300 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 248 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 23:00:08,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 71 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 23:00:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-23 23:00:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-23 23:00:08,301 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 23:00:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-23 23:00:08,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1124
[2024-11-23 23:00:08,301 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:00:08,301 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 23:00:08,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 23:00:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-23 23:00:08,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-23 23:00:08,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-23 23:00:08,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-23 23:00:08,307 INFO L422 BasicCegarLoop]: Path program histogram: [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 23:00:08,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-23 23:00:35,931 WARN L286 SmtUtils]: Spent 27.62s on a formula simplification. DAG size of input: 784 DAG size of output: 852 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)
[2024-11-23 23:00:43,661 WARN L286 SmtUtils]: Spent 7.72s on a formula simplification. DAG size of input: 852 DAG size of output: 124 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)
[2024-11-23 23:00:43,668 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 23:00:43,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:00:43 BoogieIcfgContainer
[2024-11-23 23:00:43,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 23:00:43,701 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 23:00:43,701 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 23:00:43,701 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 23:00:43,702 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:11" (3/4) ...
[2024-11-23 23:00:43,705 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-23 23:00:43,738 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-23 23:00:43,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-23 23:00:43,744 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-23 23:00:43,746 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-23 23:00:43,990 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-23 23:00:43,990 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-23 23:00:43,990 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 23:00:43,991 INFO L158 Benchmark]: Toolchain (without parser) took 157460.97ms. Allocated memory was 142.6MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 114.0MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 938.1MB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,992 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:00:43,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1089.25ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 88.3MB in the end (delta: 25.8MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 284.14ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 88.3MB in the beginning and 375.4MB in the end (delta: -287.2MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,993 INFO L158 Benchmark]: Boogie Preprocessor took 376.73ms. Allocated memory is still 427.8MB. Free memory was 375.4MB in the beginning and 318.1MB in the end (delta: 57.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,993 INFO L158 Benchmark]: RCFGBuilder took 3435.37ms. Allocated memory is still 427.8MB. Free memory was 318.1MB in the beginning and 278.3MB in the end (delta: 39.8MB). Peak memory consumption was 207.9MB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,996 INFO L158 Benchmark]: TraceAbstraction took 151978.40ms. Allocated memory was 427.8MB in the beginning and 4.0GB in the end (delta: 3.5GB). Free memory was 277.9MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,997 INFO L158 Benchmark]: Witness Printer took 289.24ms. Allocated memory is still 4.0GB. Free memory was 3.0GB in the beginning and 3.0GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 23:00:43,998 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1089.25ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 88.3MB in the end (delta: 25.8MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 284.14ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 88.3MB in the beginning and 375.4MB in the end (delta: -287.2MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 376.73ms. Allocated memory is still 427.8MB. Free memory was 375.4MB in the beginning and 318.1MB in the end (delta: 57.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
* RCFGBuilder took 3435.37ms. Allocated memory is still 427.8MB. Free memory was 318.1MB in the beginning and 278.3MB in the end (delta: 39.8MB). Peak memory consumption was 207.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 151978.40ms. Allocated memory was 427.8MB in the beginning and 4.0GB in the end (delta: 3.5GB). Free memory was 277.9MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB.
* Witness Printer took 289.24ms. Allocated memory is still 4.0GB. Free memory was 3.0GB in the beginning and 3.0GB in the end (delta: 25.2MB). 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: 149]: 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, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 116.5s, OverallIterations: 23, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 70.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17168 SdHoareTripleChecker+Valid, 64.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17168 mSDsluCounter, 8400 SdHoareTripleChecker+Invalid, 56.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1142 mSDsCounter, 11064 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35364 IncrementalHoareTripleChecker+Invalid, 46428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11064 mSolverCounterUnsat, 7258 mSDtfsCounter, 35364 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7637 GetRequests, 7541 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52461occurred in iteration=15, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 74780 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 32.4s InterpolantComputationTime, 16375 NumberOfCodeBlocks, 16375 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 19247 ConstructedInterpolants, 282 QuantifiedInterpolants, 91007 SizeOfPredicates, 5 NumberOfNonLiveVariables, 5721 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 36 InterpolantComputations, 21 PerfectInterpolantSequences, 21355/24008 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: 1776]: Loop Invariant
Derived loop invariant: (((((((((((((((((((((((((((((((((((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (5 <= a2)) && (((long long) 366639 + a0) <= 0)) && (((((long long) -315762 + a29) >= 0) ? (((long long) -315762 + a29) / 5) : ((((long long) -315762 + a29) / 5) - 1)) <= 109468)) || (((((long long) 89 + a4) <= 0) && (5 <= a2)) && (((long long) a0 + 61) <= 0))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && ((((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) >= 0) ? ((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) / 10) : (((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) / 10) - 1)) <= 579663))) || ((((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (a2 == 1)) && (((long long) a29 + 127) <= 0))) || ((((a29 <= 41) && (((long long) 42 + a4) <= 0)) && (((long long) 366639 + a0) <= 0)) && (3 == a2))) || ((((((long long) 89 + a4) <= 0) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663)) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || ((((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) a29 + 127))) && (((long long) 98 + a0) <= 0)) && (5 <= a2)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || ((((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) a29 + 127))) && (5 <= a2)) && ((((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) >= 0) ? ((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) / 10) : (((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) / 10) - 1)) <= 579663))) || ((((((((long long) 42 + a4) <= 0) && ((((((((long long) -1 * a29) + -384948) >= 0) ? ((((long long) -1 * a29) + -384948) / 10) : (((((long long) -1 * a29) + -384948) / 10) - 1)) + 4) < 0) || ((((((long long) a29 * 9) + 2) >= 0) ? ((((long long) a29 * 9) + 2) % 10) : (((((long long) a29 * 9) + 2) % 10) + 10)) == 0))) && (a2 == 1)) && (((((((long long) -1 * a29) + -384948) >= 0) ? ((((long long) -1 * a29) + -384948) / 10) : (((((long long) -1 * a29) + -384948) / 10) - 1)) + 4) <= 0)) && (((long long) a29 + 16) <= 0)) && (((long long) a0 + 61) <= 0))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (a29 <= 96178))) || ((((0 <= ((long long) 97 + a0)) && (((long long) 89 + a4) <= 0)) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (44 <= a29)) && (5 <= a2)) && (a29 <= 96178))) || ((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (((long long) a29 + 16) <= 0)) && (3 == a2))) || (((a29 <= 41) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || ((((((((long long) 42 + a4) <= 0) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) a29 + 127))) && (((long long) 98 + a0) <= 0)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (44 <= a29)) && (a2 == 1)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663)) && (3 == a2))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (((long long) a0 + 61) <= 0))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a29 + 127))) && (5 <= a2)) && (((long long) a29 + 16) <= 0))) || ((((2 == a2) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (a2 == 1)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (0 <= ((long long) 44 + a0))) && (((long long) a29 + 127) == 0))) || ((((a29 <= 41) && (0 <= ((long long) a29 + 127))) && (((long long) 89 + a4) <= 0)) && (5 <= a2))) || (((((a29 <= 41) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) a29 + 127))) && (a2 == 1))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (a2 == 4)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || ((((2 == a2) && (((long long) 89 + a4) <= 0)) && ((((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) >= 0) ? ((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) / 10) : (((((long long) 9 * ((a29 >= 0) ? (a29 / 5) : ((a29 / 5) - 1))) + 1211931) / 10) - 1)) <= 579663)) && (((long long) a0 + 61) <= 0))) || ((((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && ((((((((long long) -1 * a29) + -384948) >= 0) ? ((((long long) -1 * a29) + -384948) / 10) : (((((long long) -1 * a29) + -384948) / 10) - 1)) + 4) < 0) || ((((((long long) a29 * 9) + 2) >= 0) ? ((((long long) a29 * 9) + 2) % 10) : (((((long long) a29 * 9) + 2) % 10) + 10)) == 0))) && (a2 == 4)) && (((((((long long) -1 * a29) + -384948) >= 0) ? ((((long long) -1 * a29) + -384948) / 10) : (((((long long) -1 * a29) + -384948) / 10) - 1)) + 4) <= 0)) && (((long long) a29 + 16) <= 0))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (5 <= a2)) && (a29 <= 96178))) || (((((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && ((((((((long long) -1 * a29) + -384948) >= 0) ? ((((long long) -1 * a29) + -384948) / 10) : (((((long long) -1 * a29) + -384948) / 10) - 1)) + 4) < 0) || ((((((long long) a29 * 9) + 2) >= 0) ? ((((long long) a29 * 9) + 2) % 10) : (((((long long) a29 * 9) + 2) % 10) + 10)) == 0))) && (5 <= a2)) && (((((((long long) -1 * a29) + -384948) >= 0) ? ((((long long) -1 * a29) + -384948) / 10) : (((((long long) -1 * a29) + -384948) / 10) - 1)) + 4) <= 0)) && (((long long) a29 + 16) <= 0))) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 10) : ((((long long) a29 * 9) / 10) - 1)) <= 579663)) && (3 == a2)))
RESULT: Ultimate proved your program to be correct!
[2024-11-23 23:00:44,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d61589-c6d2-4d28-adac-bc11bfc469a9/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