./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1 --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 f5dd39c48ce76f8326a75ac77da422c73e3ef3e01f39ceb8a7824c99e1b5196d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:21:34,544 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:21:34,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 12:21:34,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:21:34,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:21:34,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:21:34,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:21:34,622 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:21:34,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:21:34,622 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:21:34,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:21:34,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:21:34,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:21:34,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:21:34,623 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:21:34,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:21:34,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 12:21:34,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:21:34,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:21:34,624 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:21:34,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:21:34,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:21:34,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:21:34,625 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:21:34,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:21:34,626 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_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1
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 -> f5dd39c48ce76f8326a75ac77da422c73e3ef3e01f39ceb8a7824c99e1b5196d
[2024-12-02 12:21:34,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:21:34,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:21:34,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:21:34,840 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:21:34,840 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:21:34,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i
[2024-12-02 12:21:37,543 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/data/11722fe86/6258f77983c443589f8f2ab7e556b044/FLAGb37bb4c1f
[2024-12-02 12:21:37,996 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:21:37,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i
[2024-12-02 12:21:38,036 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/data/11722fe86/6258f77983c443589f8f2ab7e556b044/FLAGb37bb4c1f
[2024-12-02 12:21:38,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/data/11722fe86/6258f77983c443589f8f2ab7e556b044
[2024-12-02 12:21:38,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:21:38,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:21:38,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:21:38,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:21:38,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:21:38,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:38" (1/1) ...
[2024-12-02 12:21:38,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f808117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:38, skipping insertion in model container
[2024-12-02 12:21:38,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:38" (1/1) ...
[2024-12-02 12:21:38,197 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:21:38,406 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_f96ef90d-bff3-49e7-ab19-a350c4079a4b/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i[4496,4509]
[2024-12-02 12:21:38,412 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_f96ef90d-bff3-49e7-ab19-a350c4079a4b/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i[4556,4569]
[2024-12-02 12:21:39,247 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,247 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,248 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,249 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,250 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,264 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,265 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,267 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,268 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,923 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,923 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:39,987 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:21:40,028 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:21:40,040 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_f96ef90d-bff3-49e7-ab19-a350c4079a4b/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i[4496,4509]
[2024-12-02 12:21:40,040 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_f96ef90d-bff3-49e7-ab19-a350c4079a4b/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness_negated.i[4556,4569]
[2024-12-02 12:21:40,078 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,079 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,079 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,079 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,080 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,085 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,086 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,086 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,087 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259]
[2024-12-02 12:21:40,182 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,182 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 12:21:40,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__(""
:
: "r"(pBuf)
: "memory"); [8745-8756]
[2024-12-02 12:21:40,205 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:21:40,402 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:21:40,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40 WrapperNode
[2024-12-02 12:21:40,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:21:40,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:21:40,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:21:40,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:21:40,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,521 INFO L138 Inliner]: procedures = 680, calls = 2622, calls flagged for inlining = 63, calls inlined = 11, statements flattened = 945
[2024-12-02 12:21:40,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:21:40,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:21:40,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:21:40,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:21:40,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,590 INFO L175 MemorySlicer]: Split 566 memory accesses to 5 slices as follows [2, 257, 238, 6, 63]. 45 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 9]. The 503 writes are split as follows [0, 257, 232, 2, 12].
[2024-12-02 12:21:40,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,622 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:21:40,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:21:40,652 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:21:40,652 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:21:40,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (1/1) ...
[2024-12-02 12:21:40,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:21:40,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:40,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:21:40,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:21:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid
[2024-12-02 12:21:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid
[2024-12-02 12:21:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 12:21:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool
[2024-12-02 12:21:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid
[2024-12-02 12:21:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 12:21:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error
[2024-12-02 12:21:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 12:21:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl
[2024-12-02 12:21:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:21:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:21:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc
[2024-12-02 12:21:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3
[2024-12-02 12:21:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3
[2024-12-02 12:21:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 12:21:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy
[2024-12-02 12:21:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire
[2024-12-02 12:21:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-12-02 12:21:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-12-02 12:21:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-12-02 12:21:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-12-02 12:21:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-12-02 12:21:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator
[2024-12-02 12:21:40,712 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator
[2024-12-02 12:21:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-12-02 12:21:40,712 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-12-02 12:21:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 12:21:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-12-02 12:21:40,981 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:21:40,983 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:21:48,979 INFO L? ?]: Removed 155 outVars from TransFormulas that were not future-live.
[2024-12-02 12:21:48,979 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:21:48,993 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:21:48,993 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-02 12:21:48,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:48 BoogieIcfgContainer
[2024-12-02 12:21:48,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:21:48,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:21:48,996 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:21:49,001 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:21:49,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:21:38" (1/3) ...
[2024-12-02 12:21:49,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ebafae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:49, skipping insertion in model container
[2024-12-02 12:21:49,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:40" (2/3) ...
[2024-12-02 12:21:49,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ebafae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:49, skipping insertion in model container
[2024-12-02 12:21:49,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:48" (3/3) ...
[2024-12-02 12:21:49,003 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_copy_harness_negated.i
[2024-12-02 12:21:49,018 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:21:49,019 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_init_copy_harness_negated.i that has 20 procedures, 201 locations, 1 initial locations, 9 loop locations, and 1 error locations.
[2024-12-02 12:21:49,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:21:49,085 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;@67236b74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:21:49,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 12:21:49,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 122 states have (on average 1.221311475409836) internal successors, (149), 121 states have internal predecessors, (149), 49 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49)
[2024-12-02 12:21:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-12-02 12:21:49,099 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:49,099 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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]
[2024-12-02 12:21:49,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:21:49,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:49,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1479574505, now seen corresponding path program 1 times
[2024-12-02 12:21:49,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:49,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123397307]
[2024-12-02 12:21:49,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:49,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:23:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:23:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-12-02 12:23:12,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:23:12,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123397307]
[2024-12-02 12:23:12,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123397307] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:23:12,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660032633]
[2024-12-02 12:23:12,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:23:12,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:23:12,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:23:12,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:23:12,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:24:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:24:35,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 7665 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 12:24:35,215 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:24:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-12-02 12:24:35,228 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:24:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660032633] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:24:35,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:24:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-12-02 12:24:35,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522614694]
[2024-12-02 12:24:35,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:24:35,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 12:24:35,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:24:35,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 12:24:35,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:24:35,251 INFO L87 Difference]: Start difference. First operand has 185 states, 122 states have (on average 1.221311475409836) internal successors, (149), 121 states have internal predecessors, (149), 49 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-12-02 12:24:35,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:24:35,289 INFO L93 Difference]: Finished difference Result 366 states and 520 transitions.
[2024-12-02 12:24:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 12:24:35,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82
[2024-12-02 12:24:35,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:24:35,298 INFO L225 Difference]: With dead ends: 366
[2024-12-02 12:24:35,298 INFO L226 Difference]: Without dead ends: 179
[2024-12-02 12:24:35,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:24:35,304 INFO L435 NwaCegarLoop]: 238 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, 238 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
[2024-12-02 12:24:35,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:24:35,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states.
[2024-12-02 12:24:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179.
[2024-12-02 12:24:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.1666666666666667) internal successors, (133), 115 states have internal predecessors, (133), 49 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-12-02 12:24:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 230 transitions.
[2024-12-02 12:24:35,346 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 230 transitions. Word has length 82
[2024-12-02 12:24:35,346 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:24:35,346 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 230 transitions.
[2024-12-02 12:24:35,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-12-02 12:24:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 230 transitions.
[2024-12-02 12:24:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-12-02 12:24:35,349 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:24:35,349 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 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]
[2024-12-02 12:24:35,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:24:35,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-12-02 12:24:35,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:24:35,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:24:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1798477065, now seen corresponding path program 1 times
[2024-12-02 12:24:35,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:24:35,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69998685]
[2024-12-02 12:24:35,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:24:35,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:25:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:25:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-12-02 12:25:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:25:57,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69998685]
[2024-12-02 12:25:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69998685] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:25:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176370584]
[2024-12-02 12:25:57,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:25:57,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:25:57,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:25:57,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:25:57,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:27:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:27:22,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 7687 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 12:27:23,006 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:27:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-12-02 12:27:23,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:27:23,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176370584] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:27:23,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:27:23,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9
[2024-12-02 12:27:23,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840517380]
[2024-12-02 12:27:23,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:27:23,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:27:23,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:27:23,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:27:23,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:27:23,435 INFO L87 Difference]: Start difference. First operand 179 states and 230 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13)
[2024-12-02 12:27:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:27:23,588 INFO L93 Difference]: Finished difference Result 248 states and 316 transitions.
[2024-12-02 12:27:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 12:27:23,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92
[2024-12-02 12:27:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:27:23,591 INFO L225 Difference]: With dead ends: 248
[2024-12-02 12:27:23,591 INFO L226 Difference]: Without dead ends: 173
[2024-12-02 12:27:23,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:27:23,593 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:27:23,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1130 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:27:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states.
[2024-12-02 12:27:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173.
[2024-12-02 12:27:23,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.1545454545454545) internal successors, (127), 111 states have internal predecessors, (127), 47 states have call successors, (47), 15 states have call predecessors, (47), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-12-02 12:27:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 220 transitions.
[2024-12-02 12:27:23,613 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 220 transitions. Word has length 92
[2024-12-02 12:27:23,614 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:27:23,614 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 220 transitions.
[2024-12-02 12:27:23,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13)
[2024-12-02 12:27:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 220 transitions.
[2024-12-02 12:27:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 12:27:23,617 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:27:23,617 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:27:23,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-12-02 12:27:23,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2024-12-02 12:27:23,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:27:23,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:27:23,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1248477510, now seen corresponding path program 1 times
[2024-12-02 12:27:23,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:27:23,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209839311]
[2024-12-02 12:27:23,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:27:23,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:28:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:28:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-12-02 12:28:49,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:28:49,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209839311]
[2024-12-02 12:28:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209839311] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:28:49,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544708060]
[2024-12-02 12:28:49,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:28:49,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:28:49,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:28:49,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:28:49,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:30:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:30:13,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 7708 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 12:30:13,642 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:30:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2024-12-02 12:30:14,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:30:14,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544708060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:30:14,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:30:14,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9
[2024-12-02 12:30:14,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081571123]
[2024-12-02 12:30:14,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:30:14,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:30:14,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:30:14,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:30:14,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:30:14,250 INFO L87 Difference]: Start difference. First operand 173 states and 220 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2024-12-02 12:30:15,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:30:15,794 INFO L93 Difference]: Finished difference Result 335 states and 428 transitions.
[2024-12-02 12:30:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 12:30:15,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 95
[2024-12-02 12:30:15,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:30:15,799 INFO L225 Difference]: With dead ends: 335
[2024-12-02 12:30:15,799 INFO L226 Difference]: Without dead ends: 176
[2024-12-02 12:30:15,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-12-02 12:30:15,801 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 228 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:30:15,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 650 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-12-02 12:30:15,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2024-12-02 12:30:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176.
[2024-12-02 12:30:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 114 states have internal predecessors, (129), 47 states have call successors, (47), 15 states have call predecessors, (47), 16 states have return successors, (50), 46 states have call predecessors, (50), 46 states have call successors, (50)
[2024-12-02 12:30:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 226 transitions.
[2024-12-02 12:30:15,820 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 226 transitions. Word has length 95
[2024-12-02 12:30:15,820 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:30:15,821 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 226 transitions.
[2024-12-02 12:30:15,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2024-12-02 12:30:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 226 transitions.
[2024-12-02 12:30:15,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-12-02 12:30:15,823 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:30:15,823 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:30:15,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-12-02 12:30:16,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:30:16,024 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:30:16,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:30:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1378242215, now seen corresponding path program 1 times
[2024-12-02 12:30:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:30:16,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085354627]
[2024-12-02 12:30:16,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:30:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:31:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:31:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2024-12-02 12:31:41,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:31:41,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085354627]
[2024-12-02 12:31:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085354627] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:31:41,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792279824]
[2024-12-02 12:31:41,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:31:41,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:31:41,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:31:41,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:31:41,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:33:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:33:08,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 7720 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 12:33:08,181 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:33:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked.
[2024-12-02 12:33:08,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:33:08,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792279824] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:33:08,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:33:08,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4
[2024-12-02 12:33:08,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011620670]
[2024-12-02 12:33:08,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:33:08,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:33:08,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:33:08,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:33:08,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:33:08,220 INFO L87 Difference]: Start difference. First operand 176 states and 226 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2024-12-02 12:33:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:33:08,347 INFO L93 Difference]: Finished difference Result 340 states and 441 transitions.
[2024-12-02 12:33:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 12:33:08,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101
[2024-12-02 12:33:08,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:33:08,350 INFO L225 Difference]: With dead ends: 340
[2024-12-02 12:33:08,350 INFO L226 Difference]: Without dead ends: 178
[2024-12-02 12:33:08,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:33:08,352 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 646 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
[2024-12-02 12:33:08,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 646 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:33:08,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2024-12-02 12:33:08,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178.
[2024-12-02 12:33:08,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 116 states have internal predecessors, (131), 47 states have call successors, (47), 15 states have call predecessors, (47), 16 states have return successors, (50), 46 states have call predecessors, (50), 46 states have call successors, (50)
[2024-12-02 12:33:08,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 228 transitions.
[2024-12-02 12:33:08,371 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 228 transitions. Word has length 101
[2024-12-02 12:33:08,371 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:33:08,371 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 228 transitions.
[2024-12-02 12:33:08,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2024-12-02 12:33:08,372 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 228 transitions.
[2024-12-02 12:33:08,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-12-02 12:33:08,373 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:33:08,374 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:33:08,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-12-02 12:33:08,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:33:08,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:33:08,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:33:08,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1870868389, now seen corresponding path program 1 times
[2024-12-02 12:33:08,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:33:08,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812793726]
[2024-12-02 12:33:08,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:33:08,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:34:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-12-02 12:34:35,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:34:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812793726]
[2024-12-02 12:34:35,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812793726] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:34:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118174343]
[2024-12-02 12:34:35,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:35,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:35,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:35,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:35,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 12:36:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:36:02,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 7725 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 12:36:02,478 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:36:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2024-12-02 12:36:03,363 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:36:03,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118174343] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:36:03,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:36:03,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11
[2024-12-02 12:36:03,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033984253]
[2024-12-02 12:36:03,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:36:03,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 12:36:03,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:36:03,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 12:36:03,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-12-02 12:36:03,365 INFO L87 Difference]: Start difference. First operand 178 states and 228 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13)
[2024-12-02 12:36:04,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:36:04,947 INFO L93 Difference]: Finished difference Result 329 states and 414 transitions.
[2024-12-02 12:36:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 12:36:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 101
[2024-12-02 12:36:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:36:04,951 INFO L225 Difference]: With dead ends: 329
[2024-12-02 12:36:04,951 INFO L226 Difference]: Without dead ends: 179
[2024-12-02 12:36:04,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210
[2024-12-02 12:36:04,953 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 236 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:36:04,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 639 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-12-02 12:36:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states.
[2024-12-02 12:36:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178.
[2024-12-02 12:36:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 116 states have internal predecessors, (131), 47 states have call successors, (47), 15 states have call predecessors, (47), 16 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49)
[2024-12-02 12:36:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 227 transitions.
[2024-12-02 12:36:04,969 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 227 transitions. Word has length 101
[2024-12-02 12:36:04,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:36:04,970 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 227 transitions.
[2024-12-02 12:36:04,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13)
[2024-12-02 12:36:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 227 transitions.
[2024-12-02 12:36:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-12-02 12:36:04,971 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:36:04,971 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:36:04,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-12-02 12:36:05,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f96ef90d-bff3-49e7-ab19-a350c4079a4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:36:05,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:36:05,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:36:05,172 INFO L85 PathProgramCache]: Analyzing trace with hash 583651024, now seen corresponding path program 2 times
[2024-12-02 12:36:05,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:36:05,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293793373]
[2024-12-02 12:36:05,172 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:36:05,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms