./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/process_queue.i --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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-data/process_queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:25:46,270 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:25:46,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 23:25:46,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:25:46,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:25:46,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:25:46,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:25:46,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:25:46,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:25:46,454 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:25:46,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:25:46,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:25:46,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:25:46,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:25:46,456 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:25:46,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:25:46,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:25:46,457 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:25:46,458 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:25:46,458 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:25:46,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:25:46,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:25:46,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:25:46,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:25:46,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:25:46,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:25:46,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:25:46,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:25:46,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:25:46,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:25:46,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:25:46,459 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:25:46,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:25:46,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:25:46,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:25:46,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:25:46,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:25:46,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:25:46,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:25:46,463 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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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 -> 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c
[2024-11-23 23:25:46,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:25:46,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:25:46,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:25:46,841 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:25:46,842 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:25:46,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/heap-data/process_queue.i
[2024-11-23 23:25:50,023 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/d33f3f157/ade60f6ec10c4335b161f6140320e29c/FLAGbe58206c9
[2024-11-23 23:25:50,499 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:25:50,500 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/sv-benchmarks/c/heap-data/process_queue.i
[2024-11-23 23:25:50,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/d33f3f157/ade60f6ec10c4335b161f6140320e29c/FLAGbe58206c9
[2024-11-23 23:25:50,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/d33f3f157/ade60f6ec10c4335b161f6140320e29c
[2024-11-23 23:25:50,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:25:50,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:25:50,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:25:50,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:25:50,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:25:50,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:50" (1/1) ...
[2024-11-23 23:25:50,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b4a7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:50, skipping insertion in model container
[2024-11-23 23:25:50,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:50" (1/1) ...
[2024-11-23 23:25:50,676 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:25:51,037 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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/sv-benchmarks/c/heap-data/process_queue.i[23979,23992]
[2024-11-23 23:25:51,059 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:25:51,069 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:25:51,114 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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/sv-benchmarks/c/heap-data/process_queue.i[23979,23992]
[2024-11-23 23:25:51,120 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:25:51,152 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:25:51,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51 WrapperNode
[2024-11-23 23:25:51,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:25:51,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:25:51,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:25:51,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:25:51,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,220 INFO L138 Inliner]: procedures = 127, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 112
[2024-11-23 23:25:51,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:25:51,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:25:51,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:25:51,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:25:51,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,259 INFO L175 MemorySlicer]: Split 21 memory accesses to 3 slices as follows [2, 6, 13]. 62 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 7 writes are split as follows [0, 2, 5].
[2024-11-23 23:25:51,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,270 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:25:51,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:25:51,283 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:25:51,283 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:25:51,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (1/1) ...
[2024-11-23 23:25:51,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:25:51,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:25:51,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:25:51,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:25:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-23 23:25:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-23 23:25:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-23 23:25:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-23 23:25:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-23 23:25:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-23 23:25:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 23:25:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-23 23:25:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-23 23:25:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-23 23:25:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:25:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-23 23:25:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-23 23:25:51,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:25:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:25:51,613 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:25:51,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:25:51,879 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live.
[2024-11-23 23:25:51,880 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:25:51,893 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:25:51,894 INFO L312 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-23 23:25:51,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:51 BoogieIcfgContainer
[2024-11-23 23:25:51,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:25:51,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:25:51,897 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:25:51,904 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:25:51,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:50" (1/3) ...
[2024-11-23 23:25:51,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239755a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:51, skipping insertion in model container
[2024-11-23 23:25:51,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:51" (2/3) ...
[2024-11-23 23:25:51,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239755a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:51, skipping insertion in model container
[2024-11-23 23:25:51,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:51" (3/3) ...
[2024-11-23 23:25:51,907 INFO L128 eAbstractionObserver]: Analyzing ICFG process_queue.i
[2024-11-23 23:25:51,926 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:25:51,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG process_queue.i that has 1 procedures, 30 locations, 1 initial locations, 3 loop locations, and 1 error locations.
[2024-11-23 23:25:52,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:25:52,023 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;@30adc3a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:25:52,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:25:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 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 23:25:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-23 23:25:52,036 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:25:52,037 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:25:52,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:25:52,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:25:52,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1021122534, now seen corresponding path program 1 times
[2024-11-23 23:25:52,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:25:52,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968322829]
[2024-11-23 23:25:52,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:52,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:25:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:53,696 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 23:25:53,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:25:53,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968322829]
[2024-11-23 23:25:53,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968322829] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:25:53,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:25:53,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 23:25:53,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438571363]
[2024-11-23 23:25:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:25:53,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:25:53,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:25:53,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:25:53,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:25:53,740 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 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 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:25:54,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:25:54,126 INFO L93 Difference]: Finished difference Result 103 states and 148 transitions.
[2024-11-23 23:25:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:25:54,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 13
[2024-11-23 23:25:54,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:25:54,142 INFO L225 Difference]: With dead ends: 103
[2024-11-23 23:25:54,143 INFO L226 Difference]: Without dead ends: 68
[2024-11-23 23:25:54,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:25:54,152 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:25:54,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 147 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 23:25:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-23 23:25:54,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60.
[2024-11-23 23:25:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 59 states have internal predecessors, (78), 0 states have call successors, (0), 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 23:25:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions.
[2024-11-23 23:25:54,211 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 13
[2024-11-23 23:25:54,211 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:25:54,212 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions.
[2024-11-23 23:25:54,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:25:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions.
[2024-11-23 23:25:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-23 23:25:54,213 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:25:54,213 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:25:54,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 23:25:54,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:25:54,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:25:54,216 INFO L85 PathProgramCache]: Analyzing trace with hash -678167368, now seen corresponding path program 1 times
[2024-11-23 23:25:54,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:25:54,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041054898]
[2024-11-23 23:25:54,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:54,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:25:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:54,346 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 23:25:54,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:25:54,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041054898]
[2024-11-23 23:25:54,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041054898] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:25:54,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:25:54,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:25:54,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577188317]
[2024-11-23 23:25:54,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:25:54,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:25:54,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:25:54,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:25:54,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:25:54,350 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:25:54,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:25:54,437 INFO L93 Difference]: Finished difference Result 115 states and 150 transitions.
[2024-11-23 23:25:54,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:25:54,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13
[2024-11-23 23:25:54,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:25:54,438 INFO L225 Difference]: With dead ends: 115
[2024-11-23 23:25:54,439 INFO L226 Difference]: Without dead ends: 57
[2024-11-23 23:25:54,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:25:54,440 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:25:54,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 87 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:25:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-23 23:25:54,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2024-11-23 23:25:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 56 states have internal predecessors, (73), 0 states have call successors, (0), 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 23:25:54,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions.
[2024-11-23 23:25:54,452 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 13
[2024-11-23 23:25:54,452 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:25:54,452 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions.
[2024-11-23 23:25:54,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:25:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions.
[2024-11-23 23:25:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-23 23:25:54,453 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:25:54,453 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:25:54,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 23:25:54,453 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:25:54,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:25:54,454 INFO L85 PathProgramCache]: Analyzing trace with hash 806884480, now seen corresponding path program 1 times
[2024-11-23 23:25:54,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:25:54,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56328844]
[2024-11-23 23:25:54,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:54,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:25:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:25:55,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:25:55,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56328844]
[2024-11-23 23:25:55,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56328844] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:25:55,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635938963]
[2024-11-23 23:25:55,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:55,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:25:55,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:25:55,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:25:55,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:25:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:55,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 46 conjuncts are in the unsatisfiable core
[2024-11-23 23:25:55,366 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:25:55,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:25:55,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:25:55,613 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size
[2024-11-23 23:25:55,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 34
[2024-11-23 23:25:55,667 INFO L349 Elim1Store]: treesize reduction 16, result has 50.0 percent of original size
[2024-11-23 23:25:55,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 37
[2024-11-23 23:25:56,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:25:56,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 102
[2024-11-23 23:25:56,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:25:56,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 114
[2024-11-23 23:25:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:25:56,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:25:56,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635938963] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:25:56,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:25:56,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9
[2024-11-23 23:25:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649628426]
[2024-11-23 23:25:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:25:56,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 23:25:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:25:56,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 23:25:56,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-11-23 23:25:56,674 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 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 23:25:57,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:25:57,303 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions.
[2024-11-23 23:25:57,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 23:25:57,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 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 17
[2024-11-23 23:25:57,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:25:57,308 INFO L225 Difference]: With dead ends: 102
[2024-11-23 23:25:57,308 INFO L226 Difference]: Without dead ends: 58
[2024-11-23 23:25:57,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2024-11-23 23:25:57,309 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:25:57,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 132 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 23:25:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-23 23:25:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55.
[2024-11-23 23:25:57,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 54 states have internal predecessors, (69), 0 states have call successors, (0), 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 23:25:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions.
[2024-11-23 23:25:57,333 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 17
[2024-11-23 23:25:57,334 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:25:57,334 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions.
[2024-11-23 23:25:57,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 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 23:25:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions.
[2024-11-23 23:25:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-23 23:25:57,336 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:25:57,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:25:57,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 23:25:57,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:25:57,537 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:25:57,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:25:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash -758836024, now seen corresponding path program 1 times
[2024-11-23 23:25:57,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:25:57,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613942608]
[2024-11-23 23:25:57,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:25:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:25:57,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:25:57,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613942608]
[2024-11-23 23:25:57,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613942608] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:25:57,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:25:57,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:25:57,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682482002]
[2024-11-23 23:25:57,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:25:57,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:25:57,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:25:57,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:25:57,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:25:57,886 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23:25:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:25:57,980 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions.
[2024-11-23 23:25:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:25:57,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23
[2024-11-23 23:25:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:25:57,982 INFO L225 Difference]: With dead ends: 126
[2024-11-23 23:25:57,982 INFO L226 Difference]: Without dead ends: 84
[2024-11-23 23:25:57,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:25:57,985 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 39 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:25:57,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 95 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:25:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2024-11-23 23:25:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77.
[2024-11-23 23:25:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 76 states have internal predecessors, (98), 0 states have call successors, (0), 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 23:25:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions.
[2024-11-23 23:25:58,009 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 23
[2024-11-23 23:25:58,009 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:25:58,009 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions.
[2024-11-23 23:25:58,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23:25:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions.
[2024-11-23 23:25:58,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-23 23:25:58,011 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:25:58,012 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:25:58,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 23:25:58,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:25:58,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:25:58,012 INFO L85 PathProgramCache]: Analyzing trace with hash -212698706, now seen corresponding path program 1 times
[2024-11-23 23:25:58,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:25:58,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225483954]
[2024-11-23 23:25:58,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:58,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:25:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:25:59,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:25:59,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225483954]
[2024-11-23 23:25:59,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225483954] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:25:59,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99819238]
[2024-11-23 23:25:59,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:25:59,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:25:59,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:25:59,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:25:59,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 23:25:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:25:59,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 87 conjuncts are in the unsatisfiable core
[2024-11-23 23:25:59,269 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:25:59,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:25:59,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:25:59,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1
[2024-11-23 23:25:59,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24
[2024-11-23 23:25:59,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 9
[2024-11-23 23:25:59,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:25:59,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 23:25:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:25:59,915 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:00,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:26:00,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99819238] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:26:00,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:26:00,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21
[2024-11-23 23:26:00,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268528422]
[2024-11-23 23:26:00,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:26:00,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-23 23:26:00,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:00,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-23 23:26:00,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:26:00,246 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 21 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 21 states have internal predecessors, (77), 0 states have call successors, (0), 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 23:26:02,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:02,603 INFO L93 Difference]: Finished difference Result 499 states and 646 transitions.
[2024-11-23 23:26:02,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states.
[2024-11-23 23:26:02,603 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 21 states have internal predecessors, (77), 0 states have call successors, (0), 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 27
[2024-11-23 23:26:02,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:02,606 INFO L225 Difference]: With dead ends: 499
[2024-11-23 23:26:02,608 INFO L226 Difference]: Without dead ends: 435
[2024-11-23 23:26:02,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=740, Invalid=2682, Unknown=0, NotChecked=0, Total=3422
[2024-11-23 23:26:02,611 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 575 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:02,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 574 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-23 23:26:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states.
[2024-11-23 23:26:02,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 290.
[2024-11-23 23:26:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.2802768166089966) internal successors, (370), 289 states have internal predecessors, (370), 0 states have call successors, (0), 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 23:26:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 370 transitions.
[2024-11-23 23:26:02,654 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 370 transitions. Word has length 27
[2024-11-23 23:26:02,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:02,655 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 370 transitions.
[2024-11-23 23:26:02,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 21 states have internal predecessors, (77), 0 states have call successors, (0), 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 23:26:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 370 transitions.
[2024-11-23 23:26:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-23 23:26:02,656 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:02,656 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:26:02,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-23 23:26:02,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:02,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:02,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1271088108, now seen corresponding path program 2 times
[2024-11-23 23:26:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:02,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049054532]
[2024-11-23 23:26:02,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:26:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:02,918 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 23:26:02,919 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:26:04,726 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:26:04,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:04,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049054532]
[2024-11-23 23:26:04,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049054532] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:26:04,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898170466]
[2024-11-23 23:26:04,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:26:04,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:04,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:26:04,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:26:04,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 23:26:04,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 23:26:04,946 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:26:04,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 95 conjuncts are in the unsatisfiable core
[2024-11-23 23:26:04,959 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:26:05,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2024-11-23 23:26:05,075 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size
[2024-11-23 23:26:05,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:26:05,099 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-23 23:26:05,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2024-11-23 23:26:05,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17
[2024-11-23 23:26:05,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2024-11-23 23:26:05,946 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size
[2024-11-23 23:26:05,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 66
[2024-11-23 23:26:05,977 INFO L349 Elim1Store]: treesize reduction 49, result has 45.6 percent of original size
[2024-11-23 23:26:05,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 47
[2024-11-23 23:26:06,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:06,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 96
[2024-11-23 23:26:06,071 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size
[2024-11-23 23:26:06,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 51
[2024-11-23 23:26:06,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:06,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 96
[2024-11-23 23:26:06,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:06,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 72
[2024-11-23 23:26:06,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 23
[2024-11-23 23:26:06,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3
[2024-11-23 23:26:06,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 23:26:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:26:06,645 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:07,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:07,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 54
[2024-11-23 23:26:07,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:07,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15
[2024-11-23 23:26:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:26:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898170466] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:26:08,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:26:08,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28
[2024-11-23 23:26:08,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317034764]
[2024-11-23 23:26:08,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:26:08,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-23 23:26:08,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:08,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-23 23:26:08,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756
[2024-11-23 23:26:08,251 INFO L87 Difference]: Start difference. First operand 290 states and 370 transitions. Second operand has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 0 states have call successors, (0), 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 23:26:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:16,670 INFO L93 Difference]: Finished difference Result 1059 states and 1366 transitions.
[2024-11-23 23:26:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states.
[2024-11-23 23:26:16,671 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 0 states have call successors, (0), 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 31
[2024-11-23 23:26:16,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:16,677 INFO L225 Difference]: With dead ends: 1059
[2024-11-23 23:26:16,677 INFO L226 Difference]: Without dead ends: 1057
[2024-11-23 23:26:16,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1415, Invalid=5725, Unknown=0, NotChecked=0, Total=7140
[2024-11-23 23:26:16,685 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 540 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:16,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1204 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1294 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-23 23:26:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states.
[2024-11-23 23:26:16,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 713.
[2024-11-23 23:26:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.279494382022472) internal successors, (911), 712 states have internal predecessors, (911), 0 states have call successors, (0), 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 23:26:16,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 911 transitions.
[2024-11-23 23:26:16,810 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 911 transitions. Word has length 31
[2024-11-23 23:26:16,810 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:16,810 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 911 transitions.
[2024-11-23 23:26:16,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 0 states have call successors, (0), 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 23:26:16,810 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 911 transitions.
[2024-11-23 23:26:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-23 23:26:16,811 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:16,811 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:26:16,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-23 23:26:17,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:17,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:17,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1747756166, now seen corresponding path program 3 times
[2024-11-23 23:26:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:17,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022466931]
[2024-11-23 23:26:17,013 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 23:26:17,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:17,064 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-11-23 23:26:17,064 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:26:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:26:18,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022466931]
[2024-11-23 23:26:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022466931] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:26:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378720027]
[2024-11-23 23:26:18,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 23:26:18,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:18,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:26:18,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:26:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 23:26:18,937 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-11-23 23:26:18,937 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:26:18,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 98 conjuncts are in the unsatisfiable core
[2024-11-23 23:26:18,951 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:26:18,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:19,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2024-11-23 23:26:19,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:26:19,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:19,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:19,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:19,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 33
[2024-11-23 23:26:19,252 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:26:19,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23
[2024-11-23 23:26:19,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1
[2024-11-23 23:26:19,277 INFO L349 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size
[2024-11-23 23:26:19,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23
[2024-11-23 23:26:19,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31
[2024-11-23 23:26:19,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11
[2024-11-23 23:26:19,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41
[2024-11-23 23:26:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:26:19,615 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:19,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:19,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 59
[2024-11-23 23:26:19,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:19,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52
[2024-11-23 23:26:19,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-23 23:26:19,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-23 23:26:20,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:20,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23
[2024-11-23 23:26:20,422 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-23 23:26:20,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12
[2024-11-23 23:26:20,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:20,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27
[2024-11-23 23:26:20,446 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-23 23:26:20,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2024-11-23 23:26:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:26:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378720027] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:26:20,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:26:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15
[2024-11-23 23:26:20,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042095750]
[2024-11-23 23:26:20,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:26:20,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-23 23:26:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:20,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-23 23:26:20,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210
[2024-11-23 23:26:20,477 INFO L87 Difference]: Start difference. First operand 713 states and 911 transitions. Second operand has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 0 states have call successors, (0), 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 23:26:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:21,397 INFO L93 Difference]: Finished difference Result 1472 states and 1886 transitions.
[2024-11-23 23:26:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-23 23:26:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 0 states have call successors, (0), 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 35
[2024-11-23 23:26:21,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:21,405 INFO L225 Difference]: With dead ends: 1472
[2024-11-23 23:26:21,405 INFO L226 Difference]: Without dead ends: 804
[2024-11-23 23:26:21,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:26:21,412 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 74 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:21,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 399 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 23:26:21,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states.
[2024-11-23 23:26:21,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 795.
[2024-11-23 23:26:21,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 794 states have (on average 1.269521410579345) internal successors, (1008), 794 states have internal predecessors, (1008), 0 states have call successors, (0), 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 23:26:21,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1008 transitions.
[2024-11-23 23:26:21,563 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1008 transitions. Word has length 35
[2024-11-23 23:26:21,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:21,563 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 1008 transitions.
[2024-11-23 23:26:21,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 0 states have call successors, (0), 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 23:26:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1008 transitions.
[2024-11-23 23:26:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-23 23:26:21,565 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:21,565 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:26:21,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 23:26:21,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:21,766 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:21,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash 227999954, now seen corresponding path program 1 times
[2024-11-23 23:26:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610696339]
[2024-11-23 23:26:21,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:26:22,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:22,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610696339]
[2024-11-23 23:26:22,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610696339] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:26:22,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476580453]
[2024-11-23 23:26:22,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:22,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:22,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:26:22,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:26:22,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 23:26:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:22,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 69 conjuncts are in the unsatisfiable core
[2024-11-23 23:26:22,498 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:26:22,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 11
[2024-11-23 23:26:22,592 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size
[2024-11-23 23:26:22,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:26:22,610 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-23 23:26:22,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2024-11-23 23:26:22,981 INFO L349 Elim1Store]: treesize reduction 45, result has 35.7 percent of original size
[2024-11-23 23:26:22,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 32
[2024-11-23 23:26:23,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-11-23 23:26:23,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:26:23,109 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:24,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:24,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 527 treesize of output 526
[2024-11-23 23:26:25,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3
[2024-11-23 23:26:25,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:25,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2021 treesize of output 1944
[2024-11-23 23:26:26,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1920 treesize of output 1832
[2024-11-23 23:26:26,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7576 treesize of output 7400
[2024-11-23 23:26:26,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:26,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7677 treesize of output 7512
[2024-11-23 23:26:27,158 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:27,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 13702 treesize of output 13234
[2024-11-23 23:26:29,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:26:29,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476580453] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:26:29,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:26:29,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 10] total 19
[2024-11-23 23:26:29,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889445767]
[2024-11-23 23:26:29,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:26:29,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-23 23:26:29,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:29,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-23 23:26:29,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342
[2024-11-23 23:26:29,705 INFO L87 Difference]: Start difference. First operand 795 states and 1008 transitions. Second operand has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 0 states have call successors, (0), 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 23:26:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:30,346 INFO L93 Difference]: Finished difference Result 1467 states and 1873 transitions.
[2024-11-23 23:26:30,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-23 23:26:30,347 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 0 states have call successors, (0), 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 35
[2024-11-23 23:26:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:30,351 INFO L225 Difference]: With dead ends: 1467
[2024-11-23 23:26:30,351 INFO L226 Difference]: Without dead ends: 799
[2024-11-23 23:26:30,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600
[2024-11-23 23:26:30,354 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 62 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:30,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 214 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 23:26:30,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states.
[2024-11-23 23:26:30,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 797.
[2024-11-23 23:26:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 796 states have (on average 1.2688442211055277) internal successors, (1010), 796 states have internal predecessors, (1010), 0 states have call successors, (0), 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 23:26:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1010 transitions.
[2024-11-23 23:26:30,449 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1010 transitions. Word has length 35
[2024-11-23 23:26:30,449 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:30,449 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1010 transitions.
[2024-11-23 23:26:30,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 0 states have call successors, (0), 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 23:26:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1010 transitions.
[2024-11-23 23:26:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-23 23:26:30,455 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:30,455 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:26:30,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-23 23:26:30,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-11-23 23:26:30,660 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:30,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1677447835, now seen corresponding path program 1 times
[2024-11-23 23:26:30,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392181428]
[2024-11-23 23:26:30,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:26:30,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:30,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392181428]
[2024-11-23 23:26:30,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392181428] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:26:30,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165214207]
[2024-11-23 23:26:30,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:30,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:30,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:26:30,989 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:26:30,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 23:26:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:31,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 47 conjuncts are in the unsatisfiable core
[2024-11-23 23:26:31,218 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:26:31,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2024-11-23 23:26:31,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2024-11-23 23:26:31,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-23 23:26:31,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-23 23:26:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:26:31,338 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:31,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21
[2024-11-23 23:26:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:26:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:26:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:26:31,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165214207] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:26:31,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:26:31,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9
[2024-11-23 23:26:31,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141293019]
[2024-11-23 23:26:31,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:26:31,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 23:26:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:31,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 23:26:31,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-23 23:26:31,514 INFO L87 Difference]: Start difference. First operand 797 states and 1010 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 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 23:26:31,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:31,968 INFO L93 Difference]: Finished difference Result 1400 states and 1784 transitions.
[2024-11-23 23:26:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-23 23:26:31,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 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 36
[2024-11-23 23:26:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:31,973 INFO L225 Difference]: With dead ends: 1400
[2024-11-23 23:26:31,973 INFO L226 Difference]: Without dead ends: 585
[2024-11-23 23:26:31,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210
[2024-11-23 23:26:31,975 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:31,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 119 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 23:26:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states.
[2024-11-23 23:26:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 526.
[2024-11-23 23:26:32,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.2685714285714285) internal successors, (666), 525 states have internal predecessors, (666), 0 states have call successors, (0), 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 23:26:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 666 transitions.
[2024-11-23 23:26:32,068 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 666 transitions. Word has length 36
[2024-11-23 23:26:32,069 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:32,069 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 666 transitions.
[2024-11-23 23:26:32,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 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 23:26:32,069 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 666 transitions.
[2024-11-23 23:26:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-23 23:26:32,070 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:32,070 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:26:32,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-23 23:26:32,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:32,274 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:32,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:32,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1916454883, now seen corresponding path program 1 times
[2024-11-23 23:26:32,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:32,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894478032]
[2024-11-23 23:26:32,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:32,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:26:32,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:32,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894478032]
[2024-11-23 23:26:32,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894478032] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:26:32,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:26:32,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:26:32,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507691465]
[2024-11-23 23:26:32,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:26:32,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:26:32,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:32,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:26:32,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:26:32,343 INFO L87 Difference]: Start difference. First operand 526 states and 666 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 23:26:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:32,416 INFO L93 Difference]: Finished difference Result 1042 states and 1332 transitions.
[2024-11-23 23:26:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:26:32,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 36
[2024-11-23 23:26:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:32,420 INFO L225 Difference]: With dead ends: 1042
[2024-11-23 23:26:32,421 INFO L226 Difference]: Without dead ends: 557
[2024-11-23 23:26:32,422 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 23:26:32,422 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:32,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:26:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states.
[2024-11-23 23:26:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 543.
[2024-11-23 23:26:32,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.2749077490774907) internal successors, (691), 542 states have internal predecessors, (691), 0 states have call successors, (0), 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 23:26:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 691 transitions.
[2024-11-23 23:26:32,486 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 691 transitions. Word has length 36
[2024-11-23 23:26:32,486 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:32,486 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 691 transitions.
[2024-11-23 23:26:32,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 23:26:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 691 transitions.
[2024-11-23 23:26:32,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-23 23:26:32,487 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:32,488 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:26:32,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-23 23:26:32,488 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:32,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:32,489 INFO L85 PathProgramCache]: Analyzing trace with hash 527781429, now seen corresponding path program 1 times
[2024-11-23 23:26:32,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:32,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93866216]
[2024-11-23 23:26:32,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:32,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:26:33,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:33,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93866216]
[2024-11-23 23:26:33,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93866216] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:26:33,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484855064]
[2024-11-23 23:26:33,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:26:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:26:33,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:26:33,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 23:26:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:26:33,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 90 conjuncts are in the unsatisfiable core
[2024-11-23 23:26:33,313 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:26:33,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:26:33,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1
[2024-11-23 23:26:33,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1
[2024-11-23 23:26:33,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:33,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26
[2024-11-23 23:26:33,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:26:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:26:33,878 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:34,254 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:26:34,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484855064] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:26:34,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:26:34,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 9] total 18
[2024-11-23 23:26:34,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695079254]
[2024-11-23 23:26:34,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:26:34,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-23 23:26:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:26:34,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-23 23:26:34,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306
[2024-11-23 23:26:34,256 INFO L87 Difference]: Start difference. First operand 543 states and 691 transitions. Second operand has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 18 states have internal predecessors, (95), 0 states have call successors, (0), 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 23:26:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:26:35,177 INFO L93 Difference]: Finished difference Result 1523 states and 1945 transitions.
[2024-11-23 23:26:35,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-23 23:26:35,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 18 states have internal predecessors, (95), 0 states have call successors, (0), 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 40
[2024-11-23 23:26:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:26:35,182 INFO L225 Difference]: With dead ends: 1523
[2024-11-23 23:26:35,182 INFO L226 Difference]: Without dead ends: 1021
[2024-11-23 23:26:35,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756
[2024-11-23 23:26:35,183 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 143 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:26:35,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 388 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 23:26:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states.
[2024-11-23 23:26:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 878.
[2024-11-23 23:26:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.2611174458380843) internal successors, (1106), 877 states have internal predecessors, (1106), 0 states have call successors, (0), 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 23:26:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1106 transitions.
[2024-11-23 23:26:35,288 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1106 transitions. Word has length 40
[2024-11-23 23:26:35,288 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:26:35,288 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1106 transitions.
[2024-11-23 23:26:35,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 18 states have internal predecessors, (95), 0 states have call successors, (0), 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 23:26:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1106 transitions.
[2024-11-23 23:26:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-11-23 23:26:35,289 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:26:35,289 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1]
[2024-11-23 23:26:35,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-23 23:26:35,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:35,494 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:26:35,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:26:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash -415447538, now seen corresponding path program 4 times
[2024-11-23 23:26:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:26:35,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622884272]
[2024-11-23 23:26:35,495 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-23 23:26:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:26:35,545 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-23 23:26:35,545 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:26:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 51 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-23 23:26:36,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:26:36,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622884272]
[2024-11-23 23:26:36,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622884272] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:26:36,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955444378]
[2024-11-23 23:26:36,275 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-23 23:26:36,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:26:36,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:26:36,277 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:26:36,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 23:26:36,594 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-23 23:26:36,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:26:36,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 150 conjuncts are in the unsatisfiable core
[2024-11-23 23:26:36,616 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:26:36,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2024-11-23 23:26:36,709 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-23 23:26:36,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2024-11-23 23:26:36,733 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size
[2024-11-23 23:26:36,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:26:37,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:26:37,077 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size
[2024-11-23 23:26:37,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 40
[2024-11-23 23:26:37,097 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-23 23:26:37,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2024-11-23 23:26:37,120 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-23 23:26:37,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2024-11-23 23:26:37,915 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size
[2024-11-23 23:26:37,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 56
[2024-11-23 23:26:37,991 INFO L349 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size
[2024-11-23 23:26:37,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 57
[2024-11-23 23:26:38,005 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:26:38,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23
[2024-11-23 23:26:38,026 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:26:38,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23
[2024-11-23 23:26:38,064 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size
[2024-11-23 23:26:38,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 26
[2024-11-23 23:26:38,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1
[2024-11-23 23:26:38,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1
[2024-11-23 23:26:38,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:38,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 183 treesize of output 155
[2024-11-23 23:26:38,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:38,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 135 treesize of output 231
[2024-11-23 23:26:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:26:43,056 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:26:43,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:43,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 209
[2024-11-23 23:26:43,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:43,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 199 treesize of output 181
[2024-11-23 23:26:46,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:46,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 1090 treesize of output 2484
[2024-11-23 23:26:46,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:46,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1233 treesize of output 1194
[2024-11-23 23:26:46,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:46,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 747 treesize of output 739
[2024-11-23 23:26:46,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:46,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 723 treesize of output 726
[2024-11-23 23:26:47,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:26:47,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1157 treesize of output 1129
[2024-11-23 23:37:05,363 WARN L286 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 535 DAG size of output: 608 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-23 23:37:29,185 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-11-23 23:37:29,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-11-23 23:37:29,186 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-11-23 23:37:29,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-23 23:37:29,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:29,387 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:274)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:160)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 76 more
[2024-11-23 23:37:29,396 INFO L158 Benchmark]: Toolchain (without parser) took 698789.43ms. Allocated memory was 117.4MB in the beginning and 755.0MB in the end (delta: 637.5MB). Free memory was 93.1MB in the beginning and 433.5MB in the end (delta: -340.4MB). Peak memory consumption was 471.3MB. Max. memory is 16.1GB.
[2024-11-23 23:37:29,396 INFO L158 Benchmark]: CDTParser took 1.58ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:37:29,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.57ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 75.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 23:37:29,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.29ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:37:29,397 INFO L158 Benchmark]: Boogie Preprocessor took 56.95ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 23:37:29,398 INFO L158 Benchmark]: RCFGBuilder took 611.72ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 54.5MB in the end (delta: 16.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 23:37:29,398 INFO L158 Benchmark]: TraceAbstraction took 697498.24ms. Allocated memory was 117.4MB in the beginning and 755.0MB in the end (delta: 637.5MB). Free memory was 53.8MB in the beginning and 433.5MB in the end (delta: -379.7MB). Peak memory consumption was 429.4MB. Max. memory is 16.1GB.
[2024-11-23 23:37:29,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.58ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 544.57ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 75.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 69.29ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 56.95ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 611.72ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 54.5MB in the end (delta: 16.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 697498.24ms. Allocated memory was 117.4MB in the beginning and 755.0MB in the end (delta: 637.5MB). Free memory was 53.8MB in the beginning and 433.5MB in the end (delta: -379.7MB). Peak memory consumption was 429.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-data/process_queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:37:32,407 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:37:32,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-23 23:37:32,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:37:32,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:37:32,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:37:32,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:37:32,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:37:32,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:37:32,563 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:37:32,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:37:32,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:37:32,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:37:32,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:37:32,564 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:37:32,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:37:32,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:37:32,565 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:37:32,565 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:37:32,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:37:32,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:37:32,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:37:32,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:37:32,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 23:37:32,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 23:37:32,570 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 23:37:32,570 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:37:32,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:37:32,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:37:32,570 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:37:32,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:32,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:37:32,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:32,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:37:32,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:37:32,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:37:32,574 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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/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 -> 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c
[2024-11-23 23:37:32,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:37:32,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:37:32,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:37:32,948 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:37:32,948 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:37:32,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/heap-data/process_queue.i
[2024-11-23 23:37:36,429 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/e3e0e7624/eba1d59b82034db4b72eb428c35f9db4/FLAG5329c04dd
[2024-11-23 23:37:36,816 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:37:36,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/sv-benchmarks/c/heap-data/process_queue.i
[2024-11-23 23:37:36,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/e3e0e7624/eba1d59b82034db4b72eb428c35f9db4/FLAG5329c04dd
[2024-11-23 23:37:36,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/data/e3e0e7624/eba1d59b82034db4b72eb428c35f9db4
[2024-11-23 23:37:36,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:37:36,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:37:36,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:37:36,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:37:36,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:37:36,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:36" (1/1) ...
[2024-11-23 23:37:36,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6257a412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:36, skipping insertion in model container
[2024-11-23 23:37:36,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:36" (1/1) ...
[2024-11-23 23:37:36,922 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:37:37,405 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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/sv-benchmarks/c/heap-data/process_queue.i[23979,23992]
[2024-11-23 23:37:37,418 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:37:37,441 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:37:37,509 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_79ec6389-1a1d-4fcb-a52c-7dd27633b562/sv-benchmarks/c/heap-data/process_queue.i[23979,23992]
[2024-11-23 23:37:37,515 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:37:37,555 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:37:37,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37 WrapperNode
[2024-11-23 23:37:37,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:37:37,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:37:37,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:37:37,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:37:37,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,617 INFO L138 Inliner]: procedures = 130, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109
[2024-11-23 23:37:37,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:37:37,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:37:37,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:37:37,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:37:37,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,645 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,681 INFO L175 MemorySlicer]: Split 21 memory accesses to 3 slices as follows [2, 13, 6]. 62 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 7 writes are split as follows [0, 5, 2].
[2024-11-23 23:37:37,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,695 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:37:37,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:37:37,710 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:37:37,710 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:37:37,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (1/1) ...
[2024-11-23 23:37:37,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:37,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:37,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:37:37,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:37:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-23 23:37:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-23 23:37:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-23 23:37:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-23 23:37:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-23 23:37:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-23 23:37:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 23:37:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-23 23:37:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-23 23:37:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-23 23:37:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-23 23:37:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-23 23:37:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-23 23:37:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 23:37:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-23 23:37:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-23 23:37:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:37:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:37:37,974 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:37:37,976 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:37:38,464 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live.
[2024-11-23 23:37:38,464 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:37:38,477 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:37:38,477 INFO L312 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-23 23:37:38,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:37:38 BoogieIcfgContainer
[2024-11-23 23:37:38,478 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:37:38,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:37:38,482 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:37:38,488 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:37:38,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:37:36" (1/3) ...
[2024-11-23 23:37:38,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711dd01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:37:38, skipping insertion in model container
[2024-11-23 23:37:38,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:37" (2/3) ...
[2024-11-23 23:37:38,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711dd01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:37:38, skipping insertion in model container
[2024-11-23 23:37:38,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:37:38" (3/3) ...
[2024-11-23 23:37:38,492 INFO L128 eAbstractionObserver]: Analyzing ICFG process_queue.i
[2024-11-23 23:37:38,508 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:37:38,510 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG process_queue.i that has 1 procedures, 30 locations, 1 initial locations, 3 loop locations, and 1 error locations.
[2024-11-23 23:37:38,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:37:38,600 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;@266c73a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:37:38,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:37:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 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 23:37:38,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-23 23:37:38,618 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:37:38,619 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:37:38,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:37:38,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:37:38,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1021122534, now seen corresponding path program 1 times
[2024-11-23 23:37:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:37:38,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532205087]
[2024-11-23 23:37:38,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:37:38,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:38,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:38,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:37:38,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:37:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:37:38,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-23 23:37:38,933 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:37:39,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 11
[2024-11-23 23:37:39,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:37:39,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:37:39,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:37:39,409 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 23:37:39,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:37:39,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:37:39,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532205087]
[2024-11-23 23:37:39,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532205087] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:37:39,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:37:39,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 23:37:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403426125]
[2024-11-23 23:37:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:37:39,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:37:39,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:37:39,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:37:39,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:37:39,452 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 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 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:37:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:37:41,876 INFO L93 Difference]: Finished difference Result 103 states and 148 transitions.
[2024-11-23 23:37:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:37:41,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 13
[2024-11-23 23:37:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:37:41,888 INFO L225 Difference]: With dead ends: 103
[2024-11-23 23:37:41,888 INFO L226 Difference]: Without dead ends: 68
[2024-11-23 23:37:41,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:37:41,895 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:37:41,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 147 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-23 23:37:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-23 23:37:41,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60.
[2024-11-23 23:37:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 59 states have internal predecessors, (78), 0 states have call successors, (0), 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 23:37:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions.
[2024-11-23 23:37:41,937 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 13
[2024-11-23 23:37:41,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:37:41,938 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions.
[2024-11-23 23:37:41,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:37:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions.
[2024-11-23 23:37:41,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-23 23:37:41,939 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:37:41,940 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:37:41,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 23:37:42,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:42,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:37:42,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:37:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash -678167368, now seen corresponding path program 1 times
[2024-11-23 23:37:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:37:42,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329193187]
[2024-11-23 23:37:42,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:37:42,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:42,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:42,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:37:42,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 23:37:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:37:42,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 23:37:42,258 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:37:42,478 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 23:37:42,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:37:42,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:37:42,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329193187]
[2024-11-23 23:37:42,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329193187] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:37:42,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:37:42,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:37:42,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837280285]
[2024-11-23 23:37:42,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:37:42,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:37:42,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:37:42,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:37:42,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:37:42,485 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:37:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:37:43,382 INFO L93 Difference]: Finished difference Result 115 states and 150 transitions.
[2024-11-23 23:37:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:37:43,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13
[2024-11-23 23:37:43,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:37:43,385 INFO L225 Difference]: With dead ends: 115
[2024-11-23 23:37:43,385 INFO L226 Difference]: Without dead ends: 57
[2024-11-23 23:37:43,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:37:43,386 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 23:37:43,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 87 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 23:37:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-23 23:37:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2024-11-23 23:37:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 56 states have internal predecessors, (73), 0 states have call successors, (0), 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 23:37:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions.
[2024-11-23 23:37:43,407 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 13
[2024-11-23 23:37:43,407 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:37:43,408 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions.
[2024-11-23 23:37:43,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 23:37:43,409 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions.
[2024-11-23 23:37:43,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-23 23:37:43,410 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:37:43,410 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:37:43,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-23 23:37:43,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:43,611 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:37:43,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:37:43,612 INFO L85 PathProgramCache]: Analyzing trace with hash 806884480, now seen corresponding path program 1 times
[2024-11-23 23:37:43,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:37:43,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404847796]
[2024-11-23 23:37:43,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:37:43,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:43,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:43,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:37:43,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 23:37:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:37:43,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-23 23:37:43,786 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:37:43,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:37:43,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:37:43,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:37:43,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:37:44,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18
[2024-11-23 23:37:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:37:44,216 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:37:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:37:44,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:37:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404847796]
[2024-11-23 23:37:44,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404847796] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:37:44,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:37:44,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-23 23:37:44,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227158873]
[2024-11-23 23:37:44,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:37:44,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:37:44,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:37:44,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:37:44,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:37:44,534 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 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 23:37:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:37:48,565 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions.
[2024-11-23 23:37:48,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 23:37:48,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 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 17
[2024-11-23 23:37:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:37:48,568 INFO L225 Difference]: With dead ends: 102
[2024-11-23 23:37:48,568 INFO L226 Difference]: Without dead ends: 58
[2024-11-23 23:37:48,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2024-11-23 23:37:48,569 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 55 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2024-11-23 23:37:48,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 159 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2024-11-23 23:37:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-23 23:37:48,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55.
[2024-11-23 23:37:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 54 states have internal predecessors, (69), 0 states have call successors, (0), 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 23:37:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions.
[2024-11-23 23:37:48,587 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 17
[2024-11-23 23:37:48,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:37:48,587 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions.
[2024-11-23 23:37:48,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 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 23:37:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions.
[2024-11-23 23:37:48,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-23 23:37:48,590 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:37:48,590 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:37:48,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 23:37:48,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:48,795 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:37:48,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:37:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash -758836024, now seen corresponding path program 1 times
[2024-11-23 23:37:48,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:37:48,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299066101]
[2024-11-23 23:37:48,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:37:48,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:48,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:48,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:37:48,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 23:37:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:37:48,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 23:37:48,992 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:37:49,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:37:49,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8
[2024-11-23 23:37:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:37:49,070 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:37:49,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:37:49,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299066101]
[2024-11-23 23:37:49,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299066101] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:37:49,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:37:49,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:37:49,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081354295]
[2024-11-23 23:37:49,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:37:49,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:37:49,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:37:49,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:37:49,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:37:49,076 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23:37:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:37:49,693 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions.
[2024-11-23 23:37:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:37:49,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23
[2024-11-23 23:37:49,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:37:49,696 INFO L225 Difference]: With dead ends: 126
[2024-11-23 23:37:49,696 INFO L226 Difference]: Without dead ends: 84
[2024-11-23 23:37:49,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:37:49,697 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 39 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 23:37:49,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 95 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 23:37:49,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2024-11-23 23:37:49,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77.
[2024-11-23 23:37:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 76 states have internal predecessors, (98), 0 states have call successors, (0), 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 23:37:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions.
[2024-11-23 23:37:49,731 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 23
[2024-11-23 23:37:49,731 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:37:49,731 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions.
[2024-11-23 23:37:49,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23:37:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions.
[2024-11-23 23:37:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-23 23:37:49,734 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:37:49,734 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:37:49,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-23 23:37:49,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:49,935 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:37:49,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:37:49,939 INFO L85 PathProgramCache]: Analyzing trace with hash -212698706, now seen corresponding path program 1 times
[2024-11-23 23:37:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:37:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676767508]
[2024-11-23 23:37:49,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:37:49,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:37:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:49,943 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:37:49,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 23:37:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:37:50,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 43 conjuncts are in the unsatisfiable core
[2024-11-23 23:37:50,112 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:37:50,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:37:50,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:37:50,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:37:50,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 11
[2024-11-23 23:37:50,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:37:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:37:50,482 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:37:50,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17
[2024-11-23 23:37:50,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:37:50,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 6
[2024-11-23 23:37:50,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8
[2024-11-23 23:37:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:37:50,820 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:37:50,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676767508]
[2024-11-23 23:37:50,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676767508] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:37:50,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:37:50,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2024-11-23 23:37:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151124801]
[2024-11-23 23:37:50,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:37:50,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-23 23:37:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:37:50,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 23:37:50,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2024-11-23 23:37:50,823 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 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 23:38:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:00,869 INFO L93 Difference]: Finished difference Result 410 states and 526 transitions.
[2024-11-23 23:38:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-11-23 23:38:00,870 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 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 27
[2024-11-23 23:38:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:00,872 INFO L225 Difference]: With dead ends: 410
[2024-11-23 23:38:00,872 INFO L226 Difference]: Without dead ends: 346
[2024-11-23 23:38:00,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=340, Invalid=992, Unknown=0, NotChecked=0, Total=1332
[2024-11-23 23:38:00,875 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 312 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:00,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 371 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time]
[2024-11-23 23:38:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states.
[2024-11-23 23:38:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 273.
[2024-11-23 23:38:00,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.2830882352941178) internal successors, (349), 272 states have internal predecessors, (349), 0 states have call successors, (0), 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 23:38:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 349 transitions.
[2024-11-23 23:38:00,938 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 349 transitions. Word has length 27
[2024-11-23 23:38:00,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:00,938 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 349 transitions.
[2024-11-23 23:38:00,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 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 23:38:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 349 transitions.
[2024-11-23 23:38:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-23 23:38:00,940 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:00,940 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:38:00,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-23 23:38:01,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:01,145 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:01,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:01,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1271088108, now seen corresponding path program 2 times
[2024-11-23 23:38:01,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:01,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647504043]
[2024-11-23 23:38:01,146 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:38:01,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:01,149 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:01,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 23:38:01,752 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 23:38:01,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:38:01,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:01,785 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:01,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 11
[2024-11-23 23:38:01,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 11
[2024-11-23 23:38:01,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:38:01,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:38:02,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:38:02,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:38:02,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:38:02,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 26
[2024-11-23 23:38:02,398 INFO L349 Elim1Store]: treesize reduction 37, result has 43.9 percent of original size
[2024-11-23 23:38:02,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35
[2024-11-23 23:38:02,447 INFO L349 Elim1Store]: treesize reduction 6, result has 72.7 percent of original size
[2024-11-23 23:38:02,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25
[2024-11-23 23:38:02,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30
[2024-11-23 23:38:02,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-11-23 23:38:02,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 23:38:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:38:02,794 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:38:03,980 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-23 23:38:03,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23
[2024-11-23 23:38:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:38:03,986 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:03,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647504043]
[2024-11-23 23:38:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647504043] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:38:03,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:38:03,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2024-11-23 23:38:03,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819505968]
[2024-11-23 23:38:03,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:38:03,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-23 23:38:03,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:03,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-23 23:38:03,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=246, Unknown=2, NotChecked=0, Total=306
[2024-11-23 23:38:03,990 INFO L87 Difference]: Start difference. First operand 273 states and 349 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:38:26,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:32,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:38,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:45,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:48,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:50,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:55,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2024-11-23 23:38:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:57,620 INFO L93 Difference]: Finished difference Result 623 states and 806 transitions.
[2024-11-23 23:38:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-23 23:38:57,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2024-11-23 23:38:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:57,625 INFO L225 Difference]: With dead ends: 623
[2024-11-23 23:38:57,625 INFO L226 Difference]: Without dead ends: 621
[2024-11-23 23:38:57,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=270, Invalid=908, Unknown=12, NotChecked=0, Total=1190
[2024-11-23 23:38:57,629 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 257 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 2 mSolverCounterUnsat, 74 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 74 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:57,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 418 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 485 Invalid, 74 Unknown, 0 Unchecked, 44.7s Time]
[2024-11-23 23:38:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states.
[2024-11-23 23:38:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 469.
[2024-11-23 23:38:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.2884615384615385) internal successors, (603), 468 states have internal predecessors, (603), 0 states have call successors, (0), 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 23:38:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 603 transitions.
[2024-11-23 23:38:57,711 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 603 transitions. Word has length 31
[2024-11-23 23:38:57,711 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:57,711 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 603 transitions.
[2024-11-23 23:38:57,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:38:57,712 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 603 transitions.
[2024-11-23 23:38:57,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-23 23:38:57,713 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:57,713 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:38:57,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-23 23:38:57,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:57,918 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:57,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1747756166, now seen corresponding path program 3 times
[2024-11-23 23:38:57,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:57,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885113140]
[2024-11-23 23:38:57,919 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 23:38:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:57,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:57,922 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:57,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 23:39:00,343 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-11-23 23:39:00,343 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:39:00,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 66 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:00,360 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:00,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:00,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 11
[2024-11-23 23:39:00,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:00,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:00,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:39:00,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 35
[2024-11-23 23:39:00,972 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:39:00,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23
[2024-11-23 23:39:00,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1
[2024-11-23 23:39:01,022 INFO L349 Elim1Store]: treesize reduction 6, result has 72.7 percent of original size
[2024-11-23 23:39:01,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25
[2024-11-23 23:39:01,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31
[2024-11-23 23:39:01,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11
[2024-11-23 23:39:01,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:01,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41
[2024-11-23 23:39:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:39:01,733 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:02,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:02,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 59
[2024-11-23 23:39:02,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:02,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52
[2024-11-23 23:39:02,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-23 23:39:02,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-23 23:39:02,401 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|)) (.cse1 (bvadd (_ bv8 32) .cse2))) (and (forall ((|v_ULTIMATE.start_append_to_queue_~n#1.base_27| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_append_to_queue_~n#1.base_27|))) (forall ((v_arrayElimArr_2 (Array (_ BitVec 32) (_ BitVec 32)))) (or (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_append_to_queue_~n#1.base_27| v_arrayElimArr_2) .cse0) .cse1)) (not (= (select v_arrayElimArr_2 (_ bv8 32)) .cse2)))))) (forall ((|v_ULTIMATE.start_append_to_queue_~n#1.base_27| (_ BitVec 32))) (or (forall ((v_arrayElimArr_1 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= .cse0 (select v_arrayElimArr_1 (_ bv8 32)))) (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_append_to_queue_~n#1.base_27| v_arrayElimArr_1) .cse0) .cse1)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_append_to_queue_~n#1.base_27|)))))))) is different from false
[2024-11-23 23:39:03,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:03,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23
[2024-11-23 23:39:03,267 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-23 23:39:03,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12
[2024-11-23 23:39:03,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:03,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27
[2024-11-23 23:39:03,308 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-23 23:39:03,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2024-11-23 23:39:03,377 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 19 not checked.
[2024-11-23 23:39:03,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885113140]
[2024-11-23 23:39:03,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885113140] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:03,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:03,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2024-11-23 23:39:03,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445623551]
[2024-11-23 23:39:03,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:03,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-23 23:39:03,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:03,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 23:39:03,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=89, Unknown=1, NotChecked=18, Total=132
[2024-11-23 23:39:03,380 INFO L87 Difference]: Start difference. First operand 469 states and 603 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:39:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:13,538 INFO L93 Difference]: Finished difference Result 973 states and 1255 transitions.
[2024-11-23 23:39:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-23 23:39:13,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35
[2024-11-23 23:39:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:13,543 INFO L225 Difference]: With dead ends: 973
[2024-11-23 23:39:13,543 INFO L226 Difference]: Without dead ends: 557
[2024-11-23 23:39:13,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306
[2024-11-23 23:39:13,546 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 46 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:13,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 428 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 69 Unchecked, 9.5s Time]
[2024-11-23 23:39:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states.
[2024-11-23 23:39:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551.
[2024-11-23 23:39:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 1.2745454545454546) internal successors, (701), 550 states have internal predecessors, (701), 0 states have call successors, (0), 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 23:39:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 701 transitions.
[2024-11-23 23:39:13,630 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 701 transitions. Word has length 35
[2024-11-23 23:39:13,630 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:13,630 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 701 transitions.
[2024-11-23 23:39:13,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:39:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 701 transitions.
[2024-11-23 23:39:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-23 23:39:13,631 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:13,632 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:39:13,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-23 23:39:13,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:13,832 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:13,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash 227999954, now seen corresponding path program 1 times
[2024-11-23 23:39:13,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:13,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426048267]
[2024-11-23 23:39:13,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:13,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:13,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:13,836 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:13,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 23:39:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:14,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:14,024 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:14,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:39:14,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 11
[2024-11-23 23:39:14,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:39:14,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:39:14,572 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:15,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:39:15,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:15,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426048267]
[2024-11-23 23:39:15,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426048267] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:15,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:15,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12
[2024-11-23 23:39:15,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285132106]
[2024-11-23 23:39:15,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:15,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-23 23:39:15,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:15,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 23:39:15,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2024-11-23 23:39:15,272 INFO L87 Difference]: Start difference. First operand 551 states and 701 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 23:39:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:22,301 INFO L93 Difference]: Finished difference Result 1848 states and 2410 transitions.
[2024-11-23 23:39:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-11-23 23:39:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 35
[2024-11-23 23:39:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:22,311 INFO L225 Difference]: With dead ends: 1848
[2024-11-23 23:39:22,311 INFO L226 Difference]: Without dead ends: 1322
[2024-11-23 23:39:22,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:39:22,313 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 114 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:22,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 288 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2024-11-23 23:39:22,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states.
[2024-11-23 23:39:22,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1110.
[2024-11-23 23:39:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 1.2759242560865645) internal successors, (1415), 1109 states have internal predecessors, (1415), 0 states have call successors, (0), 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 23:39:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1415 transitions.
[2024-11-23 23:39:22,492 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1415 transitions. Word has length 35
[2024-11-23 23:39:22,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:22,493 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1415 transitions.
[2024-11-23 23:39:22,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 23:39:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1415 transitions.
[2024-11-23 23:39:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-23 23:39:22,499 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:22,500 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:39:22,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-23 23:39:22,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:22,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:22,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1677447835, now seen corresponding path program 1 times
[2024-11-23 23:39:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493706356]
[2024-11-23 23:39:22,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:22,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:22,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:22,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:22,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-23 23:39:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:22,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:22,880 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:22,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2024-11-23 23:39:22,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2024-11-23 23:39:23,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-23 23:39:23,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-23 23:39:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:39:23,173 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:23,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21
[2024-11-23 23:39:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:39:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:39:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:39:23,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:23,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493706356]
[2024-11-23 23:39:23,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493706356] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:23,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:23,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2024-11-23 23:39:23,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604750461]
[2024-11-23 23:39:23,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:23,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 23:39:23,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:23,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 23:39:23,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-23 23:39:23,464 INFO L87 Difference]: Start difference. First operand 1110 states and 1415 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 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 23:39:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:26,722 INFO L93 Difference]: Finished difference Result 1686 states and 2157 transitions.
[2024-11-23 23:39:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-23 23:39:26,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 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 36
[2024-11-23 23:39:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:26,726 INFO L225 Difference]: With dead ends: 1686
[2024-11-23 23:39:26,726 INFO L226 Difference]: Without dead ends: 590
[2024-11-23 23:39:26,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210
[2024-11-23 23:39:26,728 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 34 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:26,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 149 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-23 23:39:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states.
[2024-11-23 23:39:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 525.
[2024-11-23 23:39:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.2767175572519085) internal successors, (669), 524 states have internal predecessors, (669), 0 states have call successors, (0), 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 23:39:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 669 transitions.
[2024-11-23 23:39:26,806 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 669 transitions. Word has length 36
[2024-11-23 23:39:26,807 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:26,807 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 669 transitions.
[2024-11-23 23:39:26,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 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 23:39:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 669 transitions.
[2024-11-23 23:39:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-23 23:39:26,808 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:26,808 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:39:26,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-23 23:39:27,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:27,009 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:27,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1916454883, now seen corresponding path program 1 times
[2024-11-23 23:39:27,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:27,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162429625]
[2024-11-23 23:39:27,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:27,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:27,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:27,012 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:27,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-23 23:39:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:27,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:27,185 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:39:27,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:39:27,243 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:27,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162429625]
[2024-11-23 23:39:27,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162429625] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:39:27,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:39:27,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:39:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174926464]
[2024-11-23 23:39:27,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:39:27,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:39:27,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:27,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:39:27,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:39:27,245 INFO L87 Difference]: Start difference. First operand 525 states and 669 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 23:39:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:27,362 INFO L93 Difference]: Finished difference Result 972 states and 1250 transitions.
[2024-11-23 23:39:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:39:27,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 36
[2024-11-23 23:39:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:27,366 INFO L225 Difference]: With dead ends: 972
[2024-11-23 23:39:27,366 INFO L226 Difference]: Without dead ends: 515
[2024-11-23 23:39:27,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 23:39:27,368 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:27,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:39:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states.
[2024-11-23 23:39:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 498.
[2024-11-23 23:39:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.2857142857142858) internal successors, (639), 497 states have internal predecessors, (639), 0 states have call successors, (0), 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 23:39:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 639 transitions.
[2024-11-23 23:39:27,448 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 639 transitions. Word has length 36
[2024-11-23 23:39:27,449 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:27,449 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 639 transitions.
[2024-11-23 23:39:27,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 23:39:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 639 transitions.
[2024-11-23 23:39:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-23 23:39:27,450 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:27,450 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-11-23 23:39:27,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-23 23:39:27,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:27,652 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:27,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 527781429, now seen corresponding path program 1 times
[2024-11-23 23:39:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:27,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [262851923]
[2024-11-23 23:39:27,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:27,656 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:27,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-23 23:39:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:27,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:27,870 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:27,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:39:27,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:27,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:27,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:28,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18
[2024-11-23 23:39:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:39:28,547 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:39:29,002 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:29,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262851923]
[2024-11-23 23:39:29,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262851923] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:29,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:29,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-23 23:39:29,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14921699]
[2024-11-23 23:39:29,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:29,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:39:29,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:29,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:39:29,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:39:29,003 INFO L87 Difference]: Start difference. First operand 498 states and 639 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 23:39:32,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:32,364 INFO L93 Difference]: Finished difference Result 940 states and 1213 transitions.
[2024-11-23 23:39:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 23:39:32,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 40
[2024-11-23 23:39:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:32,369 INFO L225 Difference]: With dead ends: 940
[2024-11-23 23:39:32,369 INFO L226 Difference]: Without dead ends: 505
[2024-11-23 23:39:32,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-23 23:39:32,370 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 11 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:32,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 183 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2024-11-23 23:39:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2024-11-23 23:39:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 504.
[2024-11-23 23:39:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.2823061630218688) internal successors, (645), 503 states have internal predecessors, (645), 0 states have call successors, (0), 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 23:39:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 645 transitions.
[2024-11-23 23:39:32,446 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 645 transitions. Word has length 40
[2024-11-23 23:39:32,447 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:32,447 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 645 transitions.
[2024-11-23 23:39:32,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 23:39:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 645 transitions.
[2024-11-23 23:39:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2024-11-23 23:39:32,448 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:32,448 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:39:32,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-23 23:39:32,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:32,652 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:32,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:32,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1480561161, now seen corresponding path program 2 times
[2024-11-23 23:39:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:32,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387987288]
[2024-11-23 23:39:32,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:39:32,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:32,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:32,657 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:32,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-23 23:39:33,289 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 23:39:33,289 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:39:33,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 44 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:33,300 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:33,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:39:33,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 23:39:33,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:39:33,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:39:33,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 11
[2024-11-23 23:39:33,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-23 23:39:33,655 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-23 23:39:33,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:33,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387987288]
[2024-11-23 23:39:33,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387987288] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:33,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:33,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13
[2024-11-23 23:39:33,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528707261]
[2024-11-23 23:39:33,919 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:33,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-23 23:39:33,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:33,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-23 23:39:33,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2024-11-23 23:39:33,920 INFO L87 Difference]: Start difference. First operand 504 states and 645 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 23:39:38,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:38,895 INFO L93 Difference]: Finished difference Result 1239 states and 1592 transitions.
[2024-11-23 23:39:38,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-23 23:39:38,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 46
[2024-11-23 23:39:38,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:38,899 INFO L225 Difference]: With dead ends: 1239
[2024-11-23 23:39:38,900 INFO L226 Difference]: Without dead ends: 786
[2024-11-23 23:39:38,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506
[2024-11-23 23:39:38,902 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 203 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:38,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 308 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2024-11-23 23:39:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states.
[2024-11-23 23:39:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 660.
[2024-11-23 23:39:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.2716236722306524) internal successors, (838), 659 states have internal predecessors, (838), 0 states have call successors, (0), 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 23:39:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 838 transitions.
[2024-11-23 23:39:38,998 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 838 transitions. Word has length 46
[2024-11-23 23:39:38,998 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:38,998 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 838 transitions.
[2024-11-23 23:39:38,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 23:39:38,999 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 838 transitions.
[2024-11-23 23:39:38,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-11-23 23:39:38,999 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:39,000 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1]
[2024-11-23 23:39:39,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-23 23:39:39,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:39,201 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:39,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:39,201 INFO L85 PathProgramCache]: Analyzing trace with hash -415447538, now seen corresponding path program 4 times
[2024-11-23 23:39:39,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:39,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181939452]
[2024-11-23 23:39:39,202 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-23 23:39:39,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:39,205 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:39,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-23 23:39:39,464 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-23 23:39:39,465 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:39:39,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 41 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:39,476 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:39,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:39:39,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:39:39,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 16
[2024-11-23 23:39:39,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:39:39,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-23 23:39:39,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12
[2024-11-23 23:39:39,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8
[2024-11-23 23:39:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:39:39,758 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:39:39,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:39,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181939452]
[2024-11-23 23:39:39,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181939452] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:39,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:39,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-23 23:39:39,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894496439]
[2024-11-23 23:39:39,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:39,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:39:39,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:39,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:39:39,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:39:39,923 INFO L87 Difference]: Start difference. First operand 660 states and 838 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 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 23:39:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:44,220 INFO L93 Difference]: Finished difference Result 1435 states and 1821 transitions.
[2024-11-23 23:39:44,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 23:39:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 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 49
[2024-11-23 23:39:44,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:44,224 INFO L225 Difference]: With dead ends: 1435
[2024-11-23 23:39:44,224 INFO L226 Difference]: Without dead ends: 819
[2024-11-23 23:39:44,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2024-11-23 23:39:44,226 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 84 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:44,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 268 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-11-23 23:39:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states.
[2024-11-23 23:39:44,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 717.
[2024-11-23 23:39:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.2458100558659218) internal successors, (892), 716 states have internal predecessors, (892), 0 states have call successors, (0), 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 23:39:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 892 transitions.
[2024-11-23 23:39:44,332 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 892 transitions. Word has length 49
[2024-11-23 23:39:44,332 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:44,332 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 892 transitions.
[2024-11-23 23:39:44,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 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 23:39:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 892 transitions.
[2024-11-23 23:39:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-23 23:39:44,333 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:44,333 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:39:44,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-23 23:39:44,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:44,538 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:44,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash 836775663, now seen corresponding path program 3 times
[2024-11-23 23:39:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:44,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090135755]
[2024-11-23 23:39:44,540 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 23:39:44,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:44,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:44,543 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:44,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-23 23:39:45,179 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-23 23:39:45,179 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:39:45,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:45,189 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:45,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:45,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:45,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3
[2024-11-23 23:39:45,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:45,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18
[2024-11-23 23:39:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-23 23:39:45,648 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-23 23:39:45,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:45,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090135755]
[2024-11-23 23:39:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090135755] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:39:45,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10
[2024-11-23 23:39:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414736644]
[2024-11-23 23:39:45,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:39:45,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 23:39:45,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:45,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 23:39:45,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-11-23 23:39:45,982 INFO L87 Difference]: Start difference. First operand 717 states and 892 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 23:39:49,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:49,288 INFO L93 Difference]: Finished difference Result 1542 states and 1929 transitions.
[2024-11-23 23:39:49,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 23:39:49,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 50
[2024-11-23 23:39:49,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:49,294 INFO L225 Difference]: With dead ends: 1542
[2024-11-23 23:39:49,294 INFO L226 Difference]: Without dead ends: 869
[2024-11-23 23:39:49,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2024-11-23 23:39:49,296 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 85 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:49,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 236 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-23 23:39:49,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states.
[2024-11-23 23:39:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 784.
[2024-11-23 23:39:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.2452107279693487) internal successors, (975), 783 states have internal predecessors, (975), 0 states have call successors, (0), 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 23:39:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 975 transitions.
[2024-11-23 23:39:49,412 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 975 transitions. Word has length 50
[2024-11-23 23:39:49,412 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:49,412 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 975 transitions.
[2024-11-23 23:39:49,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 23:39:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 975 transitions.
[2024-11-23 23:39:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-23 23:39:49,413 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:49,413 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1]
[2024-11-23 23:39:49,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2024-11-23 23:39:49,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:49,614 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:49,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:49,615 INFO L85 PathProgramCache]: Analyzing trace with hash 367826932, now seen corresponding path program 5 times
[2024-11-23 23:39:49,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:49,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228047436]
[2024-11-23 23:39:49,615 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-23 23:39:49,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:39:49,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:39:49,617 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:39:49,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ec6389-1a1d-4fcb-a52c-7dd27633b562/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-23 23:39:51,616 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2024-11-23 23:39:51,616 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:39:51,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 101 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:51,635 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:51,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-23 23:39:51,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-23 23:39:51,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 11
[2024-11-23 23:39:51,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:51,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-23 23:39:51,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 19
[2024-11-23 23:39:52,016 INFO L349 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size
[2024-11-23 23:39:52,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32
[2024-11-23 23:39:52,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:53,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 50
[2024-11-23 23:39:53,242 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 23:39:53,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36
[2024-11-23 23:39:53,286 INFO L349 Elim1Store]: treesize reduction 34, result has 46.0 percent of original size
[2024-11-23 23:39:53,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 47
[2024-11-23 23:39:53,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11
[2024-11-23 23:39:53,353 INFO L349 Elim1Store]: treesize reduction 59, result has 25.3 percent of original size
[2024-11-23 23:39:53,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 34
[2024-11-23 23:39:53,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1
[2024-11-23 23:39:53,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34
[2024-11-23 23:39:53,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-23 23:39:53,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 56
[2024-11-23 23:39:54,160 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-23 23:39:54,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 29
[2024-11-23 23:39:54,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-23 23:39:54,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10
[2024-11-23 23:39:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:39:54,341 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:55,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:55,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 75
[2024-11-23 23:39:55,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:55,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 68
[2024-11-23 23:39:56,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-23 23:39:56,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 680 treesize of output 679
[2024-11-23 23:39:56,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-23 23:39:56,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8