./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
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_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/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_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/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 64bit --witnessprinter.graph.data.programhash cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:07:03,667 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:07:03,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-23 23:07:03,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:07:03,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:07:03,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:07:03,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:07:03,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:07:03,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:07:03,817 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:07:03,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:07:03,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:07:03,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:07:03,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:07:03,820 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:07:03,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:07:03,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:07:03,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:07:03,821 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:07:03,822 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:07:03,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:07:03,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:07:03,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:07:03,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:07:03,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:07:03,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:07:03,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:07:03,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:07:03,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:07:03,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:07:03,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:07:03,824 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:07:03,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:07:03,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:07:03,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:07:03,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:07:03,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:07:03,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:07:03,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:07:03,825 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_d37cd8f0-88e3-4022-903a-d90e4d258795/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb
[2024-11-23 23:07:04,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:07:04,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:07:04,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:07:04,197 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:07:04,198 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:07:04,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i
[2024-11-23 23:07:07,409 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/data/30d4ea3e7/03ea64128267412c88f3cbbede55fbc8/FLAGf248466a8
[2024-11-23 23:07:08,080 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:07:08,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i
[2024-11-23 23:07:08,127 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/data/30d4ea3e7/03ea64128267412c88f3cbbede55fbc8/FLAGf248466a8
[2024-11-23 23:07:08,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/data/30d4ea3e7/03ea64128267412c88f3cbbede55fbc8
[2024-11-23 23:07:08,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:07:08,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:07:08,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:07:08,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:07:08,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:07:08,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:08" (1/1) ...
[2024-11-23 23:07:08,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50616679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:08, skipping insertion in model container
[2024-11-23 23:07:08,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:08" (1/1) ...
[2024-11-23 23:07:08,286 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:07:08,533 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_d37cd8f0-88e3-4022-903a-d90e4d258795/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523]
[2024-11-23 23:07:08,541 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_d37cd8f0-88e3-4022-903a-d90e4d258795/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583]
[2024-11-23 23:07:09,693 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,694 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,694 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,695 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,696 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,712 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,713 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,715 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:09,716 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:10,926 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:10,927 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,028 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:07:11,105 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:07:11,125 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_d37cd8f0-88e3-4022-903a-d90e4d258795/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523]
[2024-11-23 23:07:11,126 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_d37cd8f0-88e3-4022-903a-d90e4d258795/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583]
[2024-11-23 23:07:11,182 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,182 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,183 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,183 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,184 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,192 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,193 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,194 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,195 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291]
[2024-11-23 23:07:11,411 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,412 WARN L1675 CHandler]: Possible shadowing of function index
[2024-11-23 23:07:11,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__(""
:
: "r"(pBuf)
: "memory"); [8777-8788]
[2024-11-23 23:07:11,455 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:07:11,748 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:07:11,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11 WrapperNode
[2024-11-23 23:07:11,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:07:11,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:07:11,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:07:11,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:07:11,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:11,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:11,936 INFO L138 Inliner]: procedures = 680, calls = 2662, calls flagged for inlining = 58, calls inlined = 5, statements flattened = 900
[2024-11-23 23:07:11,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:07:11,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:07:11,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:07:11,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:07:11,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:11,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:11,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,066 INFO L175 MemorySlicer]: Split 592 memory accesses to 5 slices as follows [257, 2, 6, 78, 249]. 43 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [0, 2, 0, 16, 11]. The 499 writes are split as follows [257, 0, 2, 7, 233].
[2024-11-23 23:07:12,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,135 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:07:12,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:07:12,195 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:07:12,195 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:07:12,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (1/1) ...
[2024-11-23 23:07:12,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:07:12,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:07:12,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:07:12,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:07:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid
[2024-11-23 23:07:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid
[2024-11-23 23:07:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 23:07:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool
[2024-11-23 23:07:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool
[2024-11-23 23:07:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-23 23:07:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array
[2024-11-23 23:07:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array
[2024-11-23 23:07:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl
[2024-11-23 23:07:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member
[2024-11-23 23:07:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:07:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc
[2024-11-23 23:07:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches
[2024-11-23 23:07:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches
[2024-11-23 23:07:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t
[2024-11-23 23:07:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-23 23:07:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy
[2024-11-23 23:07:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-23 23:07:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write
[2024-11-23 23:07:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write
[2024-11-23 23:07:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-23 23:07:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-23 23:07:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-23 23:07:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-23 23:07:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-23 23:07:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator
[2024-11-23 23:07:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator
[2024-11-23 23:07:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-11-23 23:07:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-11-23 23:07:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded
[2024-11-23 23:07:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence
[2024-11-23 23:07:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-23 23:07:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-23 23:07:12,724 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:07:12,726 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:07:22,364 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live.
[2024-11-23 23:07:22,364 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:07:22,378 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:07:22,379 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-23 23:07:22,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:22 BoogieIcfgContainer
[2024-11-23 23:07:22,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:07:22,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:07:22,382 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:07:22,387 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:07:22,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:07:08" (1/3) ...
[2024-11-23 23:07:22,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecb7df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:22, skipping insertion in model container
[2024-11-23 23:07:22,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:11" (2/3) ...
[2024-11-23 23:07:22,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecb7df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:22, skipping insertion in model container
[2024-11-23 23:07:22,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:22" (3/3) ...
[2024-11-23 23:07:22,390 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness-1.i
[2024-11-23 23:07:22,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:07:22,409 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_from_whole_buffer_harness-1.i that has 17 procedures, 187 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 23:07:22,486 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:07:22,503 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;@3e07f3e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:07:22,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:07:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2024-11-23 23:07:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-23 23:07:22,530 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:07:22,531 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:07:22,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:07:22,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:07:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1289631181, now seen corresponding path program 1 times
[2024-11-23 23:07:22,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:07:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83265403]
[2024-11-23 23:07:22,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:07:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:09:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:09:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked.
[2024-11-23 23:09:02,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:09:02,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83265403]
[2024-11-23 23:09:02,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83265403] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:09:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79069185]
[2024-11-23 23:09:02,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:09:02,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:09:02,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:09:02,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:09:02,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:10:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:10:47,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 8118 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 23:10:47,152 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:10:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked.
[2024-11-23 23:10:47,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:10:47,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79069185] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:10:47,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:10:47,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-23 23:10:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720032119]
[2024-11-23 23:10:47,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:10:47,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 23:10:47,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:10:47,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 23:10:47,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 23:10:47,236 INFO L87 Difference]: Start difference. First operand has 187 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-23 23:10:47,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:10:47,316 INFO L93 Difference]: Finished difference Result 362 states and 521 transitions.
[2024-11-23 23:10:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 23:10:47,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176
[2024-11-23 23:10:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:10:47,330 INFO L225 Difference]: With dead ends: 362
[2024-11-23 23:10:47,331 INFO L226 Difference]: Without dead ends: 182
[2024-11-23 23:10:47,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 23:10:47,340 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:10:47,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:10:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2024-11-23 23:10:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182.
[2024-11-23 23:10:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-23 23:10:47,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 242 transitions.
[2024-11-23 23:10:47,411 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 242 transitions. Word has length 176
[2024-11-23 23:10:47,415 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:10:47,415 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 242 transitions.
[2024-11-23 23:10:47,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-11-23 23:10:47,416 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 242 transitions.
[2024-11-23 23:10:47,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-23 23:10:47,425 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:10:47,425 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:10:47,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 23:10:47,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:10:47,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:10:47,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:10:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash -885041659, now seen corresponding path program 1 times
[2024-11-23 23:10:47,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:10:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165148986]
[2024-11-23 23:10:47,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:10:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:12:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:12:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2024-11-23 23:12:30,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:12:30,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165148986]
[2024-11-23 23:12:30,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165148986] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:12:30,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817577459]
[2024-11-23 23:12:30,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:12:30,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:12:30,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:12:30,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:12:30,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 23:14:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:14:02,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 8118 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 23:14:02,130 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:14:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked.
[2024-11-23 23:14:02,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:14:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817577459] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:14:02,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:14:02,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9
[2024-11-23 23:14:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331331260]
[2024-11-23 23:14:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:14:02,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:14:02,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:14:02,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:14:02,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-23 23:14:02,772 INFO L87 Difference]: Start difference. First operand 182 states and 242 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30)
[2024-11-23 23:14:04,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:14:04,058 INFO L93 Difference]: Finished difference Result 352 states and 472 transitions.
[2024-11-23 23:14:04,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:14:04,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 176
[2024-11-23 23:14:04,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:14:04,064 INFO L225 Difference]: With dead ends: 352
[2024-11-23 23:14:04,064 INFO L226 Difference]: Without dead ends: 185
[2024-11-23 23:14:04,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-11-23 23:14:04,067 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 235 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:14:04,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 543 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-23 23:14:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2024-11-23 23:14:04,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185.
[2024-11-23 23:14:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 109 states have (on average 1.18348623853211) internal successors, (129), 112 states have internal predecessors, (129), 58 states have call successors, (58), 16 states have call predecessors, (58), 17 states have return successors, (64), 57 states have call predecessors, (64), 57 states have call successors, (64)
[2024-11-23 23:14:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 251 transitions.
[2024-11-23 23:14:04,095 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 251 transitions. Word has length 176
[2024-11-23 23:14:04,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:14:04,096 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 251 transitions.
[2024-11-23 23:14:04,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30)
[2024-11-23 23:14:04,096 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 251 transitions.
[2024-11-23 23:14:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183
[2024-11-23 23:14:04,100 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:14:04,100 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:14:04,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 23:14:04,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:14:04,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:14:04,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:14:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1379379832, now seen corresponding path program 1 times
[2024-11-23 23:14:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:14:04,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762725080]
[2024-11-23 23:14:04,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:14:04,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked.
[2024-11-23 23:15:39,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:15:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762725080]
[2024-11-23 23:15:39,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762725080] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:15:39,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207068907]
[2024-11-23 23:15:39,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:39,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:15:39,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:39,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:15:39,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 23:17:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:17:21,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 8132 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 23:17:21,675 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:17:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked.
[2024-11-23 23:17:21,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:17:21,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207068907] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:17:21,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:17:21,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4
[2024-11-23 23:17:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528242721]
[2024-11-23 23:17:21,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:17:21,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:17:21,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:17:21,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:17:21,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:17:21,779 INFO L87 Difference]: Start difference. First operand 185 states and 251 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-23 23:17:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:17:21,907 INFO L93 Difference]: Finished difference Result 358 states and 493 transitions.
[2024-11-23 23:17:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:17:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182
[2024-11-23 23:17:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:17:21,913 INFO L225 Difference]: With dead ends: 358
[2024-11-23 23:17:21,913 INFO L226 Difference]: Without dead ends: 188
[2024-11-23 23:17:21,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:17:21,916 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 1 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:17:21,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 711 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:17:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states.
[2024-11-23 23:17:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187.
[2024-11-23 23:17:21,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 114 states have internal predecessors, (131), 58 states have call successors, (58), 16 states have call predecessors, (58), 17 states have return successors, (64), 57 states have call predecessors, (64), 57 states have call successors, (64)
[2024-11-23 23:17:21,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 253 transitions.
[2024-11-23 23:17:21,944 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 253 transitions. Word has length 182
[2024-11-23 23:17:21,944 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:17:21,944 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 253 transitions.
[2024-11-23 23:17:21,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-23 23:17:21,945 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 253 transitions.
[2024-11-23 23:17:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183
[2024-11-23 23:17:21,948 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:17:21,948 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:17:21,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-23 23:17:22,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:17:22,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:17:22,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:17:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1968549578, now seen corresponding path program 1 times
[2024-11-23 23:17:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:17:22,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986619242]
[2024-11-23 23:17:22,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:17:22,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:19:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:19:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked.
[2024-11-23 23:19:05,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:19:05,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986619242]
[2024-11-23 23:19:05,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986619242] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:19:05,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133531745]
[2024-11-23 23:19:05,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:19:05,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:19:05,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:19:05,469 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:19:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 23:20:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:20:50,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 8127 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 23:20:50,674 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:20:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked.
[2024-11-23 23:20:50,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:20:50,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133531745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:20:50,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:20:50,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4
[2024-11-23 23:20:50,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095019582]
[2024-11-23 23:20:50,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:20:50,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:20:50,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:20:50,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:20:50,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:20:50,745 INFO L87 Difference]: Start difference. First operand 187 states and 253 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-23 23:20:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:20:50,932 INFO L93 Difference]: Finished difference Result 361 states and 496 transitions.
[2024-11-23 23:20:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:20:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182
[2024-11-23 23:20:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:20:50,938 INFO L225 Difference]: With dead ends: 361
[2024-11-23 23:20:50,942 INFO L226 Difference]: Without dead ends: 189
[2024-11-23 23:20:50,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:20:50,944 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:20:50,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:20:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states.
[2024-11-23 23:20:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189.
[2024-11-23 23:20:50,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 113 states have (on average 1.176991150442478) internal successors, (133), 116 states have internal predecessors, (133), 58 states have call successors, (58), 16 states have call predecessors, (58), 17 states have return successors, (64), 57 states have call predecessors, (64), 57 states have call successors, (64)
[2024-11-23 23:20:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 255 transitions.
[2024-11-23 23:20:50,989 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 255 transitions. Word has length 182
[2024-11-23 23:20:50,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:20:50,990 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 255 transitions.
[2024-11-23 23:20:50,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-23 23:20:50,992 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 255 transitions.
[2024-11-23 23:20:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183
[2024-11-23 23:20:50,995 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:20:50,995 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:20:51,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 23:20:51,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37cd8f0-88e3-4022-903a-d90e4d258795/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:20:51,197 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:20:51,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:20:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1809038138, now seen corresponding path program 1 times
[2024-11-23 23:20:51,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:20:51,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876487738]
[2024-11-23 23:20:51,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:20:51,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms